Palmer, K. van W. (1937). The Claibornian Scaphopoda, Gastropoda, and dibranchiate Cephalopoda of the southern United States. Bulletins of American Paleontology. 7(32): 1-730 [part I: 1-548; part II: 90 plates].
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Palmer, K. van W.
1937
The Claibornian Scaphopoda, Gastropoda, and dibranchiate Cephalopoda of the southern United States