Rhynchonellata - Orthida - Schizophoriidae

Full reference: J. B. Waterhouse. 1983. A Late Permian lyttoniid fauna from northwest Thailand. Papers of the Department of Geology, University of Queensland 10(3):111-153

Belongs to Acosarina according to S. Z. Shen and G. R. Shi 2007

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

Type specimen: TBR 393. Its type locality is Huai Mae Phlung, Doi Pha Phlung 20F, Lampang Province, which is in a Changhsingian marine shale in the Huai Tak Formation of Thailand.

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 14.2 x 14.5, valve 8.82 x 10.56