Strophomenata - Productida - Aulostegidae

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 Chonosteges according to G. A. Cooper and R. E. Grant 1975

Sister taxa: Chonosteges costellatus, Chonosteges limbatus, Chonosteges magnicostatus, Chonosteges matutinus, Chonosteges multicostatus, Chonosteges thailandica, Chonosteges variabilis

Type specimen: USNM 149294, a shell (Articulated shell). Its type locality is USNM708, Hess Ranch, Glass Mountains, which is in a Kungurian reef, buildup or bioherm limestone in the Cathedral Mountain Formation of Texas.

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 9.58 x 12.11