Stenzel, H. B., Krause, E. K. & Twining, J. T. (1957). Pelecypoda from the type locality of the Stone City Beds (Middle Eocene). Bureau of Economic Geology, The Univesity of Texas, Austin. 5704: 1–237, pls. 1-22 [15 February].
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Stenzel, H. B., Krause, E. K. & Twining, J. T.
1957
Pelecypoda from the type locality of the Stone City Beds (Middle Eocene).
Bureau of Economic Geology, The Univesity of Texas, Austin
