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African Natural History
On-line version ISSN 2305-7963
Print version ISSN 1816-8396
Afr. nat. history (Online) vol.4 Cape Town Jan. 2008
Hypermorphosis in Salaziceras, a Cretaceous ammonite, from Madagascar
William James KennedyI; Herbert Christian KlingerII
IOxford University Museum of Natural History, Parks Road, Oxford, 0X1 3PW, U.K. E-mail: jim.kennedy®oum.ox.ac.uk
IINatural History Collections Department, Iziko South African Museum, P.O. Box 61. Cape Town, 8000 South Africa, E-mail: hklinger@iziko.org.za.
ABSTRACT
An enigmatic ammonite from Mont Raynaud, Madagascar, originally referred to the Upper Cenomanian Calycoceras (Calycoceras ) naviculare (Mantell, 1822) is associated with an exclusively upper Upper Albian fauna. It is interpreted as a new, hypermorphic giant species of Salaziceras Breistroffer, 1936, S. lemoinei.
Keywords: Cretaceous, ammonite, Salaziceras, Hypermorphosis, Albian, Madagascar.
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ACKNOWLEDGEMENTS
We thank the late H. Gauthier for arranging access to the Sorbonne Collections, and the staff of the Department of Earth Sciences, Oxford, and the Geological Collections, Oxford University Museum ofNatural History, for technical support.
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Received 6 October 2008
Accepted 13 October 2008
Department of Geological Sciences, University of Cape Town. Private Bag, Rondebosch, 7701 South Africa