Cephalopoda - Ammonoidea - Beyrichitidae

PaleoDB taxon number: 195940

Full reference: H. Bucher. 1994. New ammonoids from the Taylori Zone (Middle Anisian, Middle Triassic) from northwestern Nevada (USA). Mémoires de Géologie (Lausanne) 22:1-8

Belongs to Eogymnotoceras according to C. Ji and H. Bucher 2018

Sister taxa: Eogymnotoceras beachi, Eogymnotoceras deleeni, Eogymnotoceras liardense, Eogymnotoceras thompsoni, Eogymnotoceras transiens, Eogymnotoceras tuberculatum

Type specimen: USNM 452813. Its type locality is Favret Canyon HB 246, Augusta Mountains, which is in an Anisian marine horizon in Nevada.

Ecology: nektonic carnivore

Average measurements (in mm): shell width 9.54, shell diameter 30.8