Cephalopoda - Ammonoidea - Proarcestidae

PaleoDB taxon number: 176859

Full reference: H. Bucher. 1988. A new Middle Anisian (Middle Triassic) ammonoid zone from northwestern Nevada. Eclogae Geologicae Helvetiae 81(3):723-762

Belongs to Nevadisculites according to H. Bucher 1988

Sister taxa: Nevadisculites depressus, Nevadisculites minutus, Nevadisculites smithi

Type specimen: USNM 427267, a shell. Its type locality is Favret Canyon HB 175, Augusta Mountains, which is in a Pelsonian marine limestone in the Favret Formation of Nevada.

Ecology: nektonic carnivore

Average measurements (in mm): shell width 32.7, shell diameter 43.0