ammonites
Streptorhynchus variabilis Thomas 1958 (lamp shell)

Strophomenata - Orthotetida - Schuchertellidae

Full reference: G. A. Thomas. 1958. The Permian Orthotetacea of Western Australia. Bureau of Mineral Resources, Geology and Geophysics Bulletin 39:1-158

Belongs to Streptorhynchus according to G. A. Thomas 1958

Sister taxa: Streptorhynchus broilii, Streptorhynchus capuloides, Streptorhynchus conicus, Streptorhynchus costatus, Streptorhynchus craticulatus, Streptorhynchus cyrano, Streptorhynchus hoskingae, Streptorhynchus inaequiornatus, Streptorhynchus jilinensis, Streptorhynchus johnstonei, Streptorhynchus kayseri, Streptorhynchus khwaense, Streptorhynchus lenticularis, Streptorhynchus liuricus, Streptorhynchus longlinensis, Streptorhynchus longyangensis, Streptorhynchus luluigui, Streptorhynchus memor, Streptorhynchus minutus, Streptorhynchus mistus, Streptorhynchus operculatus, Streptorhynchus ovata, Streptorhynchus pajkhoicus, Streptorhynchus pelargonatus, Streptorhynchus pendulus, Streptorhynchus perfidiabadensis, Streptorhynchus plata, Streptorhynchus reliquus, Streptorhynchus shumardianus, Streptorhynchus sibiricus, Streptorhynchus sinuatum, Streptorhynchus stoschensis, Streptorhynchus sulculatum, Streptorhynchus tenuiplicatus, Streptorhynchus tibetanus, Streptorhynchus tuquanensis

Type specimen: CPC 1413, a shell (Articulated shell). Its type locality is BMR KNF84, Bruten's Old Yard, Cherrabun Station, which is in an Artinskian coastal siltstone in the Noonkanbah Formation of Australia.

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): valve 33.0 x 36.6