Cephalopoda - Ceratitida - Melagathiceratidae

Full reference: J. P. Smith. 1927. Upper Triassic marine invertebrate faunas of North America. United States Geological Survey Professional Paper 141:1-262

Belongs to Juvenites according to T. Brühwiler and H. Bucher 2012

Sister taxa: Juvenites dieneri, Juvenites edelsteini, Juvenites laevis, Juvenites multiconstractus, Juvenites procurvus, Juvenites septentrionalis, Juvenites sinuosus, Juvenites spathi, Juvenites tenuicostatus, Juvenites thermarum

Type specimen: Its type locality is Bear Lake, Pseudosageceras multilobatum subzone, which is in a Smithian marine horizon in the Thaynes Formation of Idaho

Ecology: nektonic carnivore

Average measurements (in mm): shell width 7.16, shell diameter 13.0