Alternative combination: Marginifera drastica
Full reference: R. E. Grant. 1976. Permian brachiopods from southern Thailand. Paleontological Society Memoir 9:1-269
Type specimen: USNM 212282, a shell (Articulated shell). Its type locality is USNM9270, Phangnga, which is in a Roadian marine limestone in the Rat Buri Formation of Thailand.
Ecology: stationary low-level epifaunal suspension feeder
Average measurements (in mm): shell 10.4 x 13.6, valve 16.5 x 19.6