Gastropoda - Bellerophontida - Bellerophontidae

PaleoDB taxon number: 205458

Alternative combinations: Knightites (Retispira) eximia, Retispira eximia

Full reference: E. L. Yochelson. 1960. Permian Gastropoda of the southwestern United States. 3. Bellerophontacea and Patellacea. Bulletin of the American Museum of Natural History 119(4):208-293

Belongs to Yochelsonellisa according to J. B. Waterhouse and Z.Q. Chen 2006

Sister taxa: none

Type specimen: USNM 114265, a shell. Its type locality is USNM712b, Orogrande, which is in an Artinskian shallow subtidal limestone in the Hueco Formation of New Mexico.

Ecology: slow-moving low-level epifaunal detritivore

Average measurements (in mm): shell 20.8 x 23.2