Article: A new transitional myalinid bivalve from the Lower Permian of west Texas

Novaculapermia boydi gen. et sp. nov. is a remarkable Lower Permian vertically elongate bivalve that superficially resembles 'razor' clams of the superfamily Solenoidea. Our 'razor' clam possessed a duplivincular ligament and early ontogeny of the Myalinidae. The flattened, equiconvex form suggests that Novaculapermia was a shallow vertical burrower in soft sediments possibly anchored by byssal attachment; evidently it was not a reef dweller, but lived in near-reef environments.