Full reference: J. B. Waterhouse and S. Piyasin. 1970. Mid-Permian brachiopods from Khao Phrik, Thailand. Palaeontographica Abteilung A 135(3-6):83-197
Type specimen: University of Toronto B313, a shell (Articulated shell). Its type locality is Khao Phrik, Rat Buri, which is in a Roadian offshore shelf limestone/limestone in the Rat Buri Formation of Thailand.
Ecology: stationary low-level epifaunal suspension feeder