Newell, N.D., and Ciriacks, K.W., 1962, A new bivalve from the Permian of the western United States: American Museum Novitates, no. 2121, 4 p.
Newell, N.D., and Ciriacks, K.W.
American Museum Novitates, no. 2121, 4 p.
Paleontology, Invertebrate, Locale, [Kaibab Fm][Kaibab Limestone] - Permian, (Aubrey Group),