Maastrichtian heteromorph ammonites from the carnarvon basin, western-australia

Henderson, R. A. and Kennedy, W. J. and McNamara, K. J. (1992) Maastrichtian heteromorph ammonites from the carnarvon basin, western-australia. Alcheringa, 16 (1-2). pp. 133-170. ISSN 0311-5518 DOI

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A comprehensive taxonomic revision of heteromorph ammonites from the Miria Formation and the uppermost horizon, a nodule bed, of the Korojon Calcarenite is presented, with major rationalisation of earlier nomenclature and new data on the faunal sequence. Eubaculites is present throughout the succession as three biostratigraphically discrete species and Nostoceras, represented by two species, is restricted to the nodule bed. Remaining elements of the heteromorph fauna are known only from the upper part of the Miria Formation, associated with a diverse assemblage of planispiral ammonites and other molluscs. Preservation of ammonites has been strongly influenced by taphonomic factors such that the biostratigraphic pattern now apparent is largely unrelated to life assemblages. Ammonites from the upper Miria Formation are of late Maastrichtian age whereas those from the nodule bed are ascribed to the early Maastrichtian.

Item Type: Article
Uncontrolled Keywords: 1992 AREP Nil PUBL
Subjects: 04 - Palaeobiology
Divisions: 04 - Palaeobiology
Journal or Publication Title: Alcheringa
Volume: 16
Page Range: pp. 133-170
Identification Number:
Depositing User: Sarah Humbert
Date Deposited: 17 Aug 2015 12:21
Last Modified: 17 Aug 2015 12:21

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