Earth Science

Fossils: Adventures in time - 1962

Crinoids and starfish added to Iowa collections - 1962

Oklahoma's fossil beds - 1963

Pennsylvanian fossils of eastern Nebraska and Western Iowa - 1964

Past and present along the Aux Sauble River - 1965

Localities for collecting teeth of the Miocene Giant White Shark - 1966

Christina Cleburn - 1968

The Burlington crinoids - 1968

Fossil collecting sites - 1968

Midwest fossils, Pt. V - 1969

The Gilmore City crinoid fauna - 1970

Fossil collecting in the Pella beds of Iowa - 1970

Midwest fossils, Pt. XIV, Changed and false fossils - 1971

The physical characteristics of crinoids - 1971

Pennsylvanian crinoids common to Oklahoma and Michigan - 1971

A fossil dolphin from the Miocene deposits of Kabato Mountainland, Hokkaido, Japan - 1972

Some variations in crinoids - 1972

Fossils of the Warsaw Limestone - 1973

Facts and feelings about collecting crinoids - 1973

The fascination of crinoids - 1975

Hunting Iowa's crinoids - 1979

Cretaceous fossils from New Jersey and Delaware - 1980

On a fossil Sirenia from the Shotsubo Formation, Takasato, Yama, Fukushima Prefecture, Northeast Japan - 1982

Fossil teeth are the clues - 1983

Early Jurassic radiolarians from bedded chert in Kamiaso, Mino Belt, central Japan - 1985

Discovery and significance of the Takikawa sea cow (Hydrodamalis spissa) from Numata-cho, Uryu-gun, Hokkaido, Japan - 1990

New Silurian and Devonian gastropod genera of Bohemia - 1998

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011

Fossil Foraminera from the Kioroshi Formation and the Kamiiwahashi Formation, the Shimosa Group, around the Lake Inba-numa, Chiba Prefecture, central Japan - 2011