Cephalopoda - Ceratitida - Araxoceratidae

Alternative combination: Prototoceras japonicum

Full reference: Y. Bando and M. Ehiro. 1985. Taxonomic names, in Late Permian ammonoids from the southern Kitakami Massif, northeast Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 137:25-49

Belongs to Vescotoceras according to M. Ehiro 2019

See also Bando and Ehiro 1985 and Leonova 2002

Sister taxa: Vescotoceras acutum, Vescotoceras evanidum, Vescotoceras serratum

Type specimen: GLKU-TY-8201. Its type locality is Ishihama coast, locality 3, Miyagi Prefecture, which is in a Wuchiapingian offshore shale in the Suenosaki Formation of Japan.

Ecology: nektonic carnivore

Average measurements (in mm): shell diameter 25.0

Distribution: found only at Ishihama coast, locality 3, Miyagi Prefecture

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Specimen images are retrieved through the ePANDDA API.