Bivalvia - Pectinida - Pseudomonotidae

Full reference: N. D. Newell and D.W. Boyd. 1995. Pectinoid bivalves of the Permian-Triassic crisis. Bulletin of the American Museum of Natural History 227:1-95

Belongs to Pegmavalvula according to N. D. Newell and D.W. Boyd 1995

Sister taxa: Pegmavalvula delicata, Pegmavalvula delicatula, Pegmavalvula gloveri

Type specimen: AMNH 43336, a valve (Right valve). Its type locality is AMNH B7977, which is in a Spathian shallow subtidal limestone in the Moenkopi Formation of Nevada.

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): valve length 7.93