Scaphitoid cephalopods of the Colorado group. Evolution of Scaphites and related genera, with descriptions and illustrations of new species and a new genus from western interior United States.
Material type:
TextSeries: Geological Survey (U.S.). Professional paper ; 239.Publication details: Washington, U.S. Govt. Print. Off., 1951.Description: iii, 42 p. illus., 21 plates. 29 cmSubject(s): DDC classification: - 564.53
- QE75 .P9 no. 239
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"References": p. 39.
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