- Abstract:
-
The Baculites compressus zone of the Pierre Shale in Grand County, Colo., contains the following assemblage of heteromorph ammonites: Axonoceras compressum Stephenson, Anaklinoceras reflexum Stephenson, A. gordiale n.sp., Solenoceras reesidei Stephenson, Baculites compressus Say, B. undatus Stephenson, Jeletzkytes nodosus (Owen) and Hoploscaphites cf. H. landesi Ricardi. Comparisons are made with faunal assemblages from other parts of the USA and Poland. The presence of J. nodosus confirms a ...
Expand abstract - Journal:
- US Geological Survey Bulletin
- Volume:
- 2024
- Publication date:
- 1993-01-01
- ISSN:
-
0083-1093
- URN:
-
uuid:ed925c5d-514a-4296-8f16-f38b8f207649
- Source identifiers:
-
177879
- Local pid:
- pubs:177879
- Language:
- English
- Copyright date:
- 1993
Journal article
Upper Cretaceous heteromorph ammonites from the Baculites compressus zone of the Pierre Shale in north-central Colorado
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