Takakuwa, Y. & Goto, M. & Hasagawa, Y. & Yamazawa, T. & Takayama, Y. & Shimizu, M. (2001)
Tooth remains of Chlamydoselachus (Chondrichthyes, Elasmobranchii) from the Tomioka Group (Lower to Middle Miocene) in Tomioka and Annaka City, Gunma Prefecture, Central Japan.
Bulletin of Gunma Museum of Natural History, 5, 19–30