ammonites
Margaritropites kokeni Smith 1927

Cephalopoda - Ammonoidea - Tropitidae

Alternative combination: Tropites kokeni

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 Margaritropites according to E. T. Tozer 1994

Sister taxa: Margaritropites johnsoni, Margaritropites margaritiformis

Type specimen: Its type locality is North Fork of Squaw Creek, 3 miles north of Kelly's ranch, which is in a Tuvalian carbonate limestone in the Hosselkus Formation of California

Average measurements (in mm): shell width 16.9, shell diameter 32.6