Gastropoda - Prosobranchia - Orthonematidae

Full reference: A. V. Mazaev. 2002. Some murchisoniid gastropods from the Middle and Upper Carboniferous of the central part of the Russian Plate. Ruthenica 12(2):89-106

Belongs to Orthonema according to A. V. Mazaev 2002

Sister taxa: Orthonema amissidecoris, Orthonema ascensus, Orthonema borovskensis, Orthonema carbonaria, Orthonema cochleoides, Orthonema frequens, Orthonema hulusitaiensis, Orthonema illineatus, Orthonema inornatum, Orthonema knighti, Orthonema liratum, Orthonema marvinwelleri, Orthonema nakazawai, Orthonema nebrascense, Orthonema paedice, Orthonema panxianensis, Orthonema paulum, Orthonema paxillus, Orthonema pygmaeum, Orthonema rectimurum, Orthonema salteri, Orthonema sayrei, Orthonema semiornatum, Orthonema silinae, Orthonema socorroense, Orthonema striatonodosum, Orthonema strigatum, Orthonema subtaeniatum, Orthonema telescopiforme, Orthonema tirusum, Orthonema tricingulatum, Orthonema youngianum

Type specimen: PM RAS 4471/2/17, a shell

Ecology: epifaunal

Average measurements (in mm): shell 18.5 x 5.6