Full reference: R. C. Frey. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066P:1-126
Sister taxa: none
Type specimen: MU 266T, a shell. Its type locality is Belk Island, which is in a Maysvillian shallow subtidal wackestone in the Leipers Limestone Formation of Kentucky.
Ecology: nektobenthic carnivore