ammonites
Schuchertella subvexa Cooper and Grant 1974 (lamp shell)

Strophomenata - Orthotetida - Schuchertellidae

Full reference: G. A. Cooper and R. E. Grant. 1974. Permian brachiopods of West Texas, II. Smithsonian Contributions to Paleobiology 15:233-793

Belongs to Schuchertella according to G. A. Cooper and R. E. Grant 1974

Sister taxa: Schuchertella bassa, Schuchertella beyrichi, Schuchertella cooperi, Schuchertella fushuiensis, Schuchertella humboldtensis, Schuchertella luliangensis, Schuchertella probabilis, Schuchertella quryatensis, Schuchertella semiplana, Schuchertella shenshuensis, Schuchertella tapina, Streptorhynchus (Schuchertella) asperulus, Streptorhynchus (Schuchertella) praeceps

Type specimen: USNM 152589h

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 5.80 x 7.19, valve 16.2 x 17.8