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African Natural History

On-line 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.

 

REFERENCES

ADKINS, W.S. 1928. Handbook of Texas Cretaceous fossils. University of Texas Bulletin 2838: 1-385.         [ Links ]

BOULE, M., LEMOINE, P. & THÉVENIN, A. 1906-1907. Paléontologie de Madagascar, III. Céphalopodes crétacés des environs de Diego-Suarez. Annales de Paléontologie 1: 173-192 (1-20); 2: 1-56 (21-76).         [ Links ]

BREISTROFFER, M. 1936. Les subdivisions du Vraconien dans le Sud-Est de la France. Bulletin de la Société Géologique de France (6)5: 63-68.         [ Links ]

GOULD, S.J. 1977. Ontogeny and Phylogeny. Cambridge, Massachusetts and London: Belknap Press of Harvard University Press.         [ Links ]

GROSSOUVRE, A. de 1894. Recherches sur la craie supérieure, 2, Paléontologie. Les ammonites de la craie supérieure. (misdated 1893). Mémoires du Service de la Carte Géologique détaillée de la France. Imprimerie nationale, Paris.         [ Links ]

HÉBERT, [E] & MUNIER-CHALMAS, [E.P.A.]. 1875. Fossiles du Bassin d'Uchaux. Annales des Sciences Géologiques, Paris 6: 113-132.

KENNEDY, W.J. 1971. Cenomanian ammonites from southern England. Special Papers in Palaeontology 8: v + 1-133.         [ Links ]

LATIL, J.L. 1995. The Dispar zone in south-east France and comments about the biozonation of Albian in the Tethyan realm: biostratigraphy and palaeontology (ammonites). Géologie Alpine, Mémoire 20: 67-111.         [ Links ]

MANTELL, G.A., 1822. The Fossils of the South Downs, or Illustrations of the Geology of Sussex. London: L. Rolfe.         [ Links ]

McNAMARA, K.J. 1986. A guide to the nomenclature of homoeomorphy. Journal of Paleontology 60, 4-13.         [ Links ]

WRIGHT, C.W. & KENNEDY, W.J. 1979. Origin and evolution of the Cretaceous micromorph ammonite family Flickiidae. Palaeontology 22: 685-704.         [ Links ]

WRIGHT, C.W. & KENNEDY, W.J. 1981. The Ammonoidea of the Plenus Marls and the Middle Chalk. Monograph of the Palaeontographical Society, London 134(560). 148 pp.         [ Links ]

WRIGHT, C.W. & KENNEDY, W.J. 1984. The affinities of the Cretaceous ammonite Neosaynoceras Breistroffer, 1947. Palaeontology 27: 159-167.         [ Links ]

 

 

Received 6 October 2008
Accepted 13 October 2008

 

 

Department of Geological Sciences, University of Cape Town. Private Bag, Rondebosch, 7701 South Africa

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