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Pelecypoda and Rostroconchia of the Amsden Formation (Mississippian and Pennsylvanian) of Wyoming / by Mackenzie Gordon, Jr., and John Pojeta, Jr.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1975.
- 1975
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo88385The paleontology of rostroconch mollusks and the early history of the phylum Mollusca / by John Pojeta, Jr., and Bruce Runnegar.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1976.
- 1976
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo88950
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