Nonmarine mollusks of Late Cretaceous age from Wyoming, Utah, and Colorado
No abstract available.
Colorado, Utah, Wyoming↗
Geology topics
Teng-Chien Yen
Publications and source records attributed to Teng-Chien Yen.
Molluscan fauna of the Morrison formation, with a summary of the stratigraphy
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Professional Paper↗
Fresh-water mollusks of Cretaceous age from Montana and Wyoming
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Professional Paper↗
Paleocene fresh-water mollusks from southern Montana
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Professional Paper↗