Grant, U. S. I. & Hertlein, L. G. 1938a. Brissopsis blanpidie, a New Species of Echinoid from the Medial Tertiary of Mississippi. The American Midland Naturalist 19 , 482-486.
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Grant, U. S. I.; Hertlein, L. G.
1938
Brissopsis blanpidie, a New Species of Echinoid from the Medial Tertiary of Mississippi