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Jurassic (Oxfordian and Late Callovian) ammonites from the western interior region of the United States
- Author / Creator
- Available as
- Online
Details
- Creator
- by Ralph W. Imlay
- Format
- Books
- Language
- English
- Contributors
- Publication
-
- Washington : United States Department of the Interior, Geological Survey, 1982
- Physical Details
-
- 1 online resource (iv, 44 pages, 26 unnumbered pages of plates) : illustrations, map
- OCLC
- on995470000002471613, ocn896811010
- Title from title screen (viewed October 14, 2014).
- "Marine waters invaded Montana in late Callovian time, advanced southward across Wyoming in early Oxfordian time, and persisted in Montana during late Oxfordian time."
- Includes bibliographical references (pages 41-42) and index.