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Late campanian (cretaceous) heteromorph ammonites from the western interior of the United States

Abstract:

Heteromorph ammonites of the families Nostoceratidae Hyatt, 1894, and Diplomoceratidae Spath, 1976, are common to abundant in sediments deposited in the western and central parts of the U.S. Western Interior Seaway during the early late Campanian. The indices of the successive zones of Didymoceras nebrascense (Meek and Hayden, 1856a) (oldest). Didymoceras stevensoni (Whitfield, 1877), Exiteloceras jenneyi camacki, n. subsp., Exiteloceras jenneyi jenneyi (Whitfield, 1877), and Didymoceras chey...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Role:
Author
Journal:
Bulletin of the American Museum of Natural History
Issue:
251
Pages:
3-85
Publication date:
2000-01-01
ISSN:
0003-0090
URN:
uuid:3f4bd3a5-81fe-4171-80c0-3961686849a1
Source identifiers:
177988
Local pid:
pubs:177988
Language:
English

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