PaleoDB taxon number: 186084
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 444097. Its type locality is Wildhorse Mine HB 124, which is in a Bithynian offshore shelf limestone/siltstone in Nevada.
Ecology: nektonic carnivore
Average measurements (in mm): shell width 5.90, shell diameter 9.20