National Geologic Map Database
General Information
- Title: Occurrence and significance of the middle Turonian (Upper Cretaceous) belemnite Actinocamax in central western Montana
- Author(s): Cobban, W.A.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Bulletin 1962-C [p. C23-C26]
- Larger Work: Dyman, T.S., and others, Contributions to Late Cretaceous stratigraphy and paleontology, western Montana
- Publication Date: 1991
- Map Scale: 1:9,195,930
- Cross Section: None
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