ammonites
Polidevcia kasanensis de Verneuil 1845 (pointed nut clam)

Bivalvia - Protobranchia - Nuculanidae

Alternative combinations: Nucula kazanensis, Nuculana kasanensis

Full reference: E. de Verneuil. 1845. Paléontologie. Géologie de la Russie d'Europe et des Montagne de l'Oural, Paléontologie 2(3):1-512

Belongs to Polidevcia according to Lutkevitch and Lobanova 1960

Sister taxa: Polidevcia abrupta, Polidevcia aequilata, Polidevcia antequadrata, Polidevcia arctura, Polidevcia bellistriata, Polidevcia bicarinata, Polidevcia browni, Polidevcia cryptica, Polidevcia flexuosa, Polidevcia jamesi, 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: Its type locality is Sviask, Volga River, which is in a Kungurian lagoonal/restricted shallow subtidal limestone in the Russian Federation

Ecology: facultatively mobile infaunal deposit feeder-suspension feeder