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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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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.