Author: REESIDE, J.B.
Title: Fauna of the so-called Dakota Formation of northern central Colorado and its equivalent in southeastern Wyoming.
Description: 1923. United States Geological Survey Prof. Paper 131-H; pp. 199-207, 6 plts. h.t. with molluscs (5) and fish scales (1 pl). Orig. wrps. stapled, 4to.

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