Rhynchonellata - Rhynchonellida - Petasmatheridae

PaleoDB taxon number: 126033

Full reference: G. A. Cooper and R. E. Grant. 1976. Permian Brachiopods from West Texas, IV. Smithsonian Contributions to Paleobiology 21:1923-2607

Belongs to Elassonia according to G. A. Cooper and R. E. Grant 1975

Sister taxa: Elassonia petila, Elassonia scitula, Elassonia sobrina

Type specimen: USNM 154620d, a shell (Articulated shell)

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 1.87 x 1.98