Cephalopoda - Nautilida - Tainoceratidae

Full reference: A. K. Miller and H. D. Thomas. 1936. The Casper Formation (Pennsylvanian) of Wyoming and its cephalopod fauna. Journal of Paleontology 10:715-738

Belongs to Tainoceras according to A. K. Miller and W. Youngquist 1949

Sister taxa: Tainoceras abukumaense, Tainoceras balestense, Tainoceras carinatum, Tainoceras cavatum, Tainoceras changlingpuense, Tainoceras clydense, Tainoceras comptum, Tainoceras debile, Tainoceras duttoni, Tainoceras gibbosum, Tainoceras guizhouense, Tainoceras hunanense, Tainoceras kitakamiense, Tainoceras lateronodosum, Tainoceras malsineri, Tainoceras mingshanense, Tainoceras murrayi, Tainoceras nebrascense, Tainoceras orientale, Tainoceras rotundatum, Tainoceras schellbachi, Tainoceras sexlineatum, Tainoceras toulai, Tainoceras trimuense, Tainoceras unklesbayi

Type specimen: SUI 1159-63. Its type locality is Gilmore Canyon, Stenopoceras beds, 8 miles SE of Laramie, which is in an Asselian marine limestone in the Casper Formation of Wyoming.

Ecology: nektobenthic carnivore

Average measurements (in mm): shell width 15.1, shell diameter 21.4