PaleoDB taxon number: 186085
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 444120. Its type locality is Favret Canyon HB 2, Augusta Mountains, which is in a Bithynian offshore limestone/siltstone in Nevada.
Ecology: nektonic carnivore
Average measurements (in mm): shell width 15.4, shell diameter 68.0