ammonites
Heteralosia tenuispina Cooper and Grant 1975 (lamp shell)

Strophomenata - Productida - Strophalosiidae

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

Sister taxa: Heteralosia alexandrae, Heteralosia complectens, Heteralosia haerens, Heteralosia hystricula, Heteralosia iphia, Heteralosia magnispina, Heteralosia mexicana, Heteralosia paucispinosa, Heteralosia vidriensis, Strophalosia (Heteralosia) sublamellata, Strophalosia (Heteralosia) tenuispina

Type specimen: USNM 152634b, a shell (Articulated shell)

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 10.6 x 13.0, valve 10.0 x 9.0