PaleoDB taxon number: 256409
Full reference: H. Bucher. 1989. Lower Anisian ammonoids from the northern Humboldt Range (northwestern Nevada, USA) and their bearing upon the Lower-Middle Triassic boundary. Eclogae Geologicae Helvetiae 82:945-1002
Type specimen: USNM 438310, a shell. Its type locality is Coyote Canyon HB 56, northern Humboldt Range, which is in an Aegean offshore limestone/siltstone in the Prida Formation of Nevada.
Ecology: nektonic carnivore
Average measurements (in mm): shell width 15.7, shell diameter 49.8