Rhynchonellata - Spiriferida - Strophopleuridae

Full reference: V. M. Zavodowsky. 1968. Spiriferacea. Novye Vidy Drevnikh Rasteniy i Bespozvonochnykh SSSR 2:149-160

Belongs to Pterospirifer according to V. M. Zavodowsky 1968

Sister taxon: Pterospirifer alatus

Type specimen: TsGM 16-20/8234. Its type locality is Sededema River Basin (Alazeya Plateau), tuffite, which is in an Asselian marine tuff in the Burgali Formation of the Russian Federation.

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 35.0 x 110.0