L. William Stephenson, ?Larger invertebrate fossils of the Woodbine Formation (Cenomanian) of Texas?, Geological Survey Professional Paper, vol. 242, pp. 1-226, 1952.

I. G.  Speden, ?The Type Fox Hills Formation, Cretaceous (Maestrichtian), South Dakota. Part 2. Systematics of the Bivalvia?, Peabody Museum of Natural History Bulletin, vol. 33, pp. 1-222, 1970.

P.  Fischer, Manuel de cochyliologie et de paléontologie conchyliologique ou histoire naturelle des mollusques vivants et fossiles suivi d'un appendice sur les brachiopodes, vol. 2, 2 vol. Paris: F. Savy, 1887, p. xxiv+1369.

R. E.  Akers and Akers, T. J., ?Texas Cretaceous bivalves 2. Descriptions and illustrations of all named Texas genera and species?, Texas Paleontology Series, vol. 7, p. ???, 2002.

I. G.  Speden, ?The Type Fox Hills Formation, Cretaceous (Maestrichtian), South Dakota. Part 2. Systematics of the Bivalvia?, Peabody Museum of Natural History Bulletin, vol. 33, pp. 1-222, 1970.

L. William Stephenson, ?Larger invertebrate fossils of the Woodbine Formation (Cenomanian) of Texas?, Geological Survey Professional Paper, vol. 242, pp. 1-226, 1952.