Strophomenata - Productida - Tschernyschewiidae

Alternative combination: Tschernyschewia inexpectans

Full reference: G. A. Cooper and R. E. Grant. 1975. Permian Brachiopods of West Texas, III. Smithsonian Contributions to Paleobiology 19:795-1921

Belongs to Trigonoproductus according to A. Williams et al. 2007

Sister taxa: none

Type specimen: USNM 152681, a shell (Articulated shell)

Average measurements (in mm): shell 25.8 x 30.6