Bulletin of the Gunma Museum of Natural History

A new nearly complete skeleton of Camarasaurus - 1996

An ornithomimid vertebra from the Early Cretaceous Sebayashi Formation, Sanchu Terrane, Gunma Prefecture, Japan - 1999

On occurrence of Desmostylian fossils from the Upper part of the Niwaya Formation, Tomioka Group (Middle Miocene), Yoshii town, Gunma Prefecture, Japan - 2000

Miocene Otariid (Allodesminae) scapula from Haraichi Formation, Tomioka Group, Gunma, Japan - 2000

Preliminary note on the Miocene flightless swan from the Haraichi Formation, Tomioka Group of Annaka, Gunma, Japan - 2001

A new dinosaur track locality in the Tetori Group of Mekko-dani ravine, Oguchi, Ishikawa, Japan - 2001

A balaenopterid whale from the Haraichi Formation (Middle Miocene), Toioka Group, Annaka City, Gunma Prefecture, Japan - 2002

A possible spinosaurid tooth from the Sebayashi Formation (Lower Cretaceous), Gunma, Japan - 2003

A new specimen of ziphiid (Cetacea) from the Middle Miocene of Shiga-mura, Central Japan - 2003

A hadrosaurid vertebra from the Ashizawa Formation, Futaba Group, Fukushima, Japan - 2003

Pseudodontorn fossils from Japan, with preliminary observations on the maxilla specimen from the Lower Oligocene Iwaki Formation, Fukushima, Japan - 2003

An outline of the Miocene cetotheres of Japan - 2004

A middle Miocene Mysticeti from the Bessho Formation, Nagano Prefecture, central Japan - 2004

Systematics and evolution of Dromaeosauridae (Dinosauria, Theropoda) - 2004

Fossil finless propoise, Neophocaena phocaenoides, from the Seto Island Sea, Japan - 2005

A smaller manus of the Paleoparadoxia (Mammalia: Desmostylia) from the Haratajino Formation, Tomioka Group, Gunma, Japan - 2006

Fossil sperm whales (Cetacea, Physeteridae) from Gunma and Ibaraki prefectures, Japan; with observations on the Miocene fossil sperm whale Scaldicetus shigensis Hirota and Barnes, 1995 - 2006

Fossil physeterid from the Miocene Urizura Formation, Taga Group, Ibaraki, Japan - 2006

A new species of Eubalaena (Cetacea: Mysticeti: Balaenidae) from the Gonda Formation (latest Miocene-early Pliocene) of Japan - 2007

A method for distinguishing dromaeosaurid manual unguals from pedal "sickle claws - 2007

On the two large specimens of Paleoparadoxia (Middle Miocene) from Western Gunma Prefecture, Japan - 2008

A fossil cetothere from the Lower Miocene Yoshino Formation, Katsuta Group, Okayama, Japan - 2008

A Pleistocene delphinid from the Ichijiku Formation, Chiba Prefecture, Japan - 2008

A fossil mysticeti from the Plio-Pleistocene Sarumaru Formation, Nagano Prefecture, Japan - 2009

A fossil mysticete from the middle Miocene Bihoku Group, Hiroshima, Japan - 2010

Fine sculptures on a tooth of Spinosaurus (Dinosauria, Theropoda) from Morocco - 2010

An additional fossil mysticete form the Middle Bihoku Group, Hiroshima, Japan - 2011

A sub-adult growth stage indicated in the degree of suture co-ossification in Triceratops - 2011

A fossil delphinid (Cetacea, Odontoceti) form the Pleistocene Ichijiku Formation, Kazusa Group, Chiba, Japan - 2012

A mysticete fossil from the Middle Miocene Omori Formation, Shimane Prefecture, Japan - 2015