PaleoDB taxon number: 186078
Full reference: H. Bucher. 1992. Ammonoids of the Hyatti Zone and the Anisian transgression in the Star Peak Group, Northwestern Nevada, USA. Palaeontographica Abteilung A 233:137-166
Type specimen: USNM 444114. Its type locality is McCoy Mine HB 157G, New Pass Range, which is in a Bithynian offshore limestone/siltstone in the Favret Formation of Nevada.
Ecology: nektonic carnivore
Average measurements (in mm): shell width 10.6, shell diameter 33.9