CHRISTOPHER A. Mc ROBERTS, NORMAN D. NEWELL
American Museum Novitates 2001 (3311), 1-8, (30 January 2001) https://doi.org/10.1206/0003-0082(2001)311<0001:ANPMGE>2.0.CO;2
A distinctive myalinid bivalve Elversella rugosa new genus and species from the Middle Permian of West Texas is described. Elversella rugosa is characterized as being inequivalved, with a larger left valve covered rhythmically by coarse rugae and a smooth right valve that is somewhat smaller and less convex.