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Ammonite faunas and the 'standard zones' of the Cenomanian to Maastrichtian Stages in their type areas, with some proposals for the definition of the stage boundaries by ammonites.

Abstract:

The 'standard zones' of the Cenomanian to Maastrichtian Stages as applied to the western European region are critically evaluated, and their development within the type areas of these stages is reviewed. Proposals for defining the bases of the Upper Cretaceous stages worldwide using ammonites are: Cenomanian: appearance of Hypoturrilites Dubourdieu, 1953 or Neostlingoceras Klinger and Kennedy, 1978; Turonian: appearance of Pseudaspidoceras flexuosum Powell, 1963; Coniacian: appearance of Forr...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Role:
Author
Journal:
Bulletin - Geological Society of Denmark
Volume:
33
Pages:
147-161
Publication date:
1984-01-01
URN:
uuid:eb839363-1d42-48cc-82fb-78efb485eb6b
Source identifiers:
82109
Local pid:
pubs:82109
Language:
English

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