Rhynchonellata - Terebratulida - Heterelasminidae

Alternative combination: Hemiptychina planoventrum

Full reference: B.K. Licharew. 2002. New species of the Permian terebratulids from the Darvaz Ridge. Paleontological Journal 36(3):268-269

Belongs to Heterelasmina according to T. N. Smirnova 2007

Sister taxa: Heterelasmina costata, Heterelasmina cuboides, Heterelasmina dieneri, Heterelasmina elegantula, Heterelasmina genuflexa, Heterelasmina latesinuata, Heterelasmina pygmaea, Heterelasmina regularis

Type specimen: TsNIGR 1003/4424, a shell (Articulated specimen). Its type locality is Adamak Rock, Collection 4424, Safetdaron, Darvaz Mountains, which is in a Kungurian marine horizon in the Safetdaron Formation of Tajikistan.

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 12.9 x 10.0