Full reference: R. H. Flower. 1964. The Nautiloid Order Ellesmeroceratida (Cephalopoda). State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology, Memoir 12:234 p.
Sister taxa: none
Type specimen: RHF 240, a shell. Its type locality is Threadgill Creek section (Threadgill Mbr.), which is in a Gasconadian shallow subtidal lime mudstone in the Tanyard Formation of Texas.
Ecology: nektonic carnivore