Maastrichtian non-heteromorph ammonites from the Miria Formation, Western Australia

Henderson, R. A. and McNamara, K. J. (1985) Maastrichtian non-heteromorph ammonites from the Miria Formation, Western Australia. Palaeontology, 28 (FEB). pp. 35-88. ISSN ISSN: 0031-0239, ESSN: 1475-4983

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Abstract

Twenty-two species of non-heteromorph ammonites, distributed among fourteen genera, are described from the Miria Formation, Western Australia. The species Kitchinites spathi, Gunnarites raggatti, Kossmaticeras (Natalites) brunnschweileri, Neograhamites carnarvonensis, and Brahmaites (Brahmaites) kossmati, and the subspecies Pachydiscus (Pachydiscus) neubergicus dissitus and P. (P.) jacquoti australis are described as new. Pachydiscus species shared with Western Europe date the Miria Formation as Maastrichtian, consistent with its age assignment based on Foraminifera. The Kossmaticeratidae is the most diverse family, contributing more than a third of the species. Maastrichtian records for the kossmaticeratid genera Gunnarites, Maorites, Kossmaticeras (Natalites), Grossouvrites, and Neograhamites, which previously had been thought to range no higher than Campanian, are new. The age attributable to the Miria Formation ammonite assemblage is reviewed in relation to standard Maastrichtian ammonite faunas from Western Europe.

Item Type: Article
Uncontrolled Keywords: 1985 AREP Nil PUBL
Subjects: 04 - Palaeobiology
Divisions: 04 - Palaeobiology
08 - Green Open Access
Journal or Publication Title: Palaeontology
Volume: 28
Page Range: pp. 35-88
Depositing User: Sarah Humbert
Date Deposited: 16 Jul 2018 10:38
Last Modified: 16 Jul 2018 10:38
URI: http://eprints.esc.cam.ac.uk/id/eprint/2701

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