A partial skeleton of Paleoparadoxia from San-yama, Ogano-cho, Saitama Prefecture, central Japan - 2002
Early Late Permian (Wuchiapingian) foraminifers in the Tatsuno area, Hyogo - Late Paleozoic and Early mesozoic foraminifers of Hyogo, Japan, part 4 - 2006
Latest Permian (Changhsingian) foraminifers in the Mikata area, Hyogo - Late Paleozoic and early Mesozoic foraminifers of Hyogo, Japan, Part 3 - 2006
Late Middle Permian (Capitanian) foraminifers in the Miharaiyama area, Hyogo - Late Paleozoic and early Mesozoic foraminifers of Hyogo, Japan, Part 2 - 2006