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Occurrence of the rudistid Durania cornupastoris (Des Moulins, 1826) in the Upper Cretaceous Greenhorn Limestone in Colorado

Abstract:
A group of at least 28 conjoined individuals of Durania cornupastoris (Des Moulins, 1826) is described from the uppermost part of the Greenhorn Limestone near La Junta in southeastern Colorado. The specimens are from a bed of limestone concretions that contain the ammonite Collignoniceras woollgari (Mantell) of early middle Turonian age. A younger rudist, Durania maxima (Logan, 1898), is fairly abundant in the Santonian and lower Campanian part of the Niobrara Chalk in Kansas, but other rudists are scarce in the Western Interior. -from Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
Journal:
US Geological Survey Bulletin
Volume:
1985
Publication date:
1991-01-01
ISSN:
0083-1093
Source identifiers:
177739
Language:
English
Pubs id:
pubs:177739
UUID:
uuid:21e7d158-6d83-4136-b108-83dfc599d229
Local pid:
pubs:177739
Deposit date:
2013-02-20

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