Bivalvia - Protobranchia - Nuculanidae

Full reference: T. E. Yancey. 1978. Brachiopods and mollusca of the Lower Permian Arcturus Group, Nevada and Utah, Part 1: brachiopods, scaphopods, rostroconchs, and bivalves. Bulletins of American Paleontology 74(303):257-367

Belongs to Polidevcia according to T. E. Yancey 1978

Sister taxa: Polidevcia abrupta, Polidevcia aequilata, Polidevcia antequadrata, Polidevcia bellistriata, Polidevcia bicarinata, Polidevcia browni, Polidevcia cryptica, Polidevcia flexuosa, Polidevcia jamesi, Polidevcia kasanensis, Polidevcia kolyvanica, Polidevcia lunulata, Polidevcia lyonsensis, Polidevcia magna, Polidevcia nodulosa, Polidevcia obesa, Polidevcia ovata, Polidevcia stevensiana, Polidevcia thomasi, Polidevcia tulcumbensis, Polidevcia undosa, Polidevcia vorgaschorica, Polidevcia zabaikalica

Type specimen: USNM 245175, a shell (Articulated shell). Its type locality is CHS 1J-6, Buck Mountain Section, which is in an Artinskian marine horizon in the Riepetown Formation of Nevada.

Ecology: facultatively mobile infaunal deposit feeder-suspension feeder

Average measurements (in mm): shell 16.3 x 29.0