ammonites
Cypricardinia borealica Muromtseva 1984 (clam)

Bivalvia - Carditida - Cardiniidae

Full reference: V. A. Muromtseva. 1984. Taxonomic Descriptions. Permskie Morskie Otlozheniya I Dvustvorchatie Mollyuski Sovetskoi Arktiki 1-154

Belongs to Cypricardinia according to V. A. Muromtseva 1984

Sister taxa: Cypricardinia contracta, Cypricardinia dalecarlica, Cypricardinia eopermica, Cypricardinia fayettevillensis, Cypricardinia fossa, Cypricardinia kallholniensis, Cypricardinia permica, Cypricardinia securigera

Type specimen: Its type locality is Kozhim River, Sezymskaya Svita, Pechora Basin, which is in a Sakmarian marine horizon in the Sezymskaya Formation of the Russian Federation

Ecology: facultatively mobile infaunal suspension feeder

Average measurements (in mm): valve length 29.9