Cephalopoda - Ellesmerocerida - Protocycloceratidae

Full reference: E. O. Ulrich, A. F. Foerste, A. K. Miller and W. M. Furnish. 1944. Ozarkian and Canadian cephalopods, longicones and summary. Geological Society of America Special Paper 58:1-226

Belongs to Protocycloceras according to E. O. Ulrich et al. 1944

Sister taxa: Protocycloceras abnorme, Protocycloceras arkansasense, Protocycloceras becki, Protocycloceras catulus, Protocycloceras doniphonense, Protocycloceras furtivum, Protocycloceras gangshanense, Protocycloceras geronticum, Protocycloceras lamarcki, Protocycloceras levisense, Protocycloceras manitouense, Protocycloceras mendax, Protocycloceras odenvillense, Protocycloceras ordinatum, Protocycloceras smithvillense, Protocycloceras xerxes

Ecology: nektobenthic carnivore