Cephalopoda - Ceratitida - Sibiritidae

Full reference: J. Guex, A. Hungerbühler, J. Jenks, D. Taylor, and H. Bucher. 2005. Dix-neuf nouvelles espèces d’ammonites du Spathien (Trias inférieur) de l’ouest américain (Idaho, Nevada, Utah et Californie) : Note préliminaire. Bulletin de Géologie Lausanne 363:1-28

Belongs to Prohungarites according to J. Guex et al. 2010

Sister taxa: Prohungarites beyrichitoides, Prohungarites gutstadti, Prohungarites landuensis, Prohungarites lenticularis, Prohungarites mckelvei, Prohungarites qinghaiensis, Prohungarites submiddlemissi

Type specimen: JGX-1004. Its type locality is Humboldt Range JGX-NHR-2360A, which is in a Spathian deep-water shale in the Thaynes Formation of Nevada.

Ecology: nektonic carnivore

Average measurements (in mm): shell width 9.00, shell diameter 33.0