ammonites
Acosarina dunbari Cooper and Grant 1976 (lamp shell)

Rhynchonellata - Orthida - Schizophoriidae

Full reference: G. A. Cooper and R. E. Grant. 1976. Permian Brachiopods of west Texas, V. Smithsonian Contributions to Paleobiology 24:2609-3159

Belongs to Acosarina according to G. A. Cooper and R. E. Grant 1976

Sister taxa: Acosarina aethopa, Acosarina antesulcata, Acosarina baylorensis, Acosarina circular, Acosarina dorashamensis, Acosarina fecunda, Acosarina grandis, Acosarina incisiva, Acosarina janiceps, Acosarina juresanensis, Acosarina mesoplatys, Acosarina minuta, Acosarina monocosta, Acosarina rectimarginata, Acosarina regularis

Type specimen: USNM 150247a, a shell (Articulated shell)

Ecology: stationary epifaunal suspension feeder