Cephalopoda - Ceratitida - Prionitidae

Full reference: Y. Bando. 1964. The Triassic stratigraphy and ammonite fauna of Japan. Science Reports of the Tohoku University. Second Series, Geology 36:1-137

Belongs to Arctoprionites according to Y. Bando 1964

Sister taxa: Arctoprionites minor, Arctoprionites nipponicus, Arctoprionites nodosus, Arctoprionites ovalis, Arctoprionites williamsi

Type specimen: IGPS 78335. Its type locality is Taho, Anasibirites Beds, Uonashi, Ehime Prefecture, which is in a Smithian marine siliciclastic in the Taho Formation of Japan.

Ecology: nektonic carnivore

Average measurements (in mm): shell width 4.25, shell diameter 13.4