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Occurrence of the Upper Cretaceous ammonite Rhaeboceras in the Baculites eliasi Zone of the Pierre Shale

Published online by Cambridge University Press:  14 July 2015

Joyce C. Grier ,
James W. Grier  and
Jack G. Petersen
Joyce C. Grier
Affiliation:
Geology Department, North Dakota State University, Fargo 58105-5517, Zoology
James W. Grier
Affiliation:
Department, North Dakota State University, Fargo 58105-5517
Jack G. Petersen
Affiliation:
1256 Hammond, Waterloo, Iowa 50702
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Extract

The discovery of a specimen of Rhaeboceras coloradoense Cobban, 1987, in the Baculites eliasi zone in east-central Montana is significant for three reasons: 1) it is the most geologically recent occurrence of Rhaeboceras; 2) it connects more closely than previous specimens the lineage between the genus Rhaeboceras Meek and Ponteixites Warren, its apparent smaller descendant; and 3) it significantly extends the geographical range of the species.

Type
Paleontological Notes
Information
Journal of Paleontology , Volume 66 , Issue 3 , May 1992 , pp. 521 - 523
Copyright
Copyright © The Paleontological Society 

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References

Bishop, G. A. 1967. Biostratigraphic mapping in the upper Pierre Shale utilizing the cephalopod genus Baculites, Cedar Creek Anticline, Montana. Unpubl. , South Dakota School of Mines and Technology, Rapid City, South Dakota, 18 p.Google Scholar
Cobban, W. A. 1987. The upper Cretaceous ammonite Rhaeboceras Meek in the western interior of the United States. U.S. Geological Survey Professional Paper 1477, 15 p.CrossRefGoogle Scholar
Gill, J. R., and Cobban, W. A. 1973. Stratigraphy and geological history of the Montana Group and equivalent rocks, Montana, Wyoming, and North and South Dakota. U.S. Geological Survey Professional Paper 776, 37 p.CrossRefGoogle Scholar
Landman, N. H., and Waage, K. M. 1986. Shell abnormalities in scaphitid ammonites. Lethaia, 19:211–224.CrossRefGoogle Scholar
Larson, P. L. 1984. Shell deformities in scaphitids of the Upper Cretaceous Fox Hills Formation, a statistical analysis. Unpubl. report. Black Hills Institute of Geological Research, 17 p.Google Scholar
Meek, F. B., and Hayden, F. V. 1856. Descriptions of new species of Gasteropoda and Cephalopoda from the Cretaceous formations of Nebraska Territory. Academy of Natural Sciences of Philadelphia Proceedings, 8:70–72.Google Scholar
Meek, F. B., and Hayden, F. V. 1862. Descriptions of new Cretaceous fossils from Nebraska Territory, collected by the expedition sent out by the Government under the command of Lieut. John Mullan, U.S. Topographical Engineers, for the location and construction of a wagon road from the sources of the Missouri to the Pacific Ocean. Academy of Natural Sciences of Philadelphia Proceedings 1862:21–28.Google Scholar
Morton, N. 1983. Pathologically deformed Graphoceras (Ammonitina) from the Jurassic of Skye, Scotland. Palaeontology, 26:443–453.Google Scholar
Riccardi, A. C. 1983. Scaphitids from the Upper Campanian-Lower Maastrichtian Bearpaw Formation of the western interior of Canada. Geological Survey of Canada, Bulletin 354, 103 p.CrossRefGoogle Scholar
Whiteaves, J. F. 1885. Report on the invertebrates of the Laramie and Cretaceous rocks of the vicinity of the Bow and Belly rivers and adjacent localities in the North-West Territory. Geological Survey of Canada Contributions to Canadian Palaeontology, Volume 1, Pt. 1, 89 p.Google Scholar