KUMIP Holotypes - Bottjer, Roberts, and Hattin

Bottjer, D.J., C. Roberts & D.E. Hattin, 1978, J. Paleo. V. 52, no. 6, p. 1208-1218, pl. 1-2: "Stratigraphic and Ecologic Significance of Pycnodont kansasense, a New Lower Turonian Oyster from the Greenhorn Limestone of Kansas" 

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