Bivalvia - Protobranchia - Nuculanidae

Full reference: A. S. Biakov. 2002. Permian bivalves from the Transbaikal Region. Paleontological Journal 36(5):460-468

Belongs to Polidevcia according to A. S. Biakov 2002

Sister taxa: Polidevcia abrupta, Polidevcia aequilata, Polidevcia antequadrata, Polidevcia arctura, Polidevcia bellistriata, Polidevcia bicarinata, Polidevcia browni, Polidevcia cryptica, Polidevcia flexuosa, 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: MCGS 29/1019, a valve (Right valve). Its type locality is Zun-Shiveya Ravine, site 1487/7, Chiron Depression, which is in a Sakmarian marine horizon in the Zhipkosh Formation of the Russian Federation.

Ecology: facultatively mobile infaunal deposit feeder-suspension feeder

Average measurements (in mm): valve length 17.1