A new specimen of Ichthyosaurus communis from Dorset,UK, and its bearing on the stratigraphical range of the species |
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| Authors: | SP Bennett PM Barrett ME Collinson S Moore-Fay PG Davis CP Palmer |
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| Institution: | 1. Department of Earth Sciences, Royal Holloway University of London, Egham Hill, Egham, Surrey, TW20 0EX, United Kingdom;2. Department of Palaeontology, Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom;3. Wavecut Platform Ltd., 131 Bradbourne Vale Road, Sevenoaks, Kent, TN13 3DJ, United Kingdom;4. Science Directorate, Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom |
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| Abstract: | This paper describes a new ichthyosaur specimen from the Stonebarrow Marls Member (Charmouth Mudstone Formation) of Charmouth, Dorset. It is substantially complete and various characters of the skull (snout ratios and basioccipital morphology) and appendicular skeleton (the number of digits on the hind paddle, which can be used to infer the number of digits on the front paddle) indicate that the specimen is referable to Ichthyosaurus communis. This provides the first direct evidence for the presence of I. communis in the Pliensbachian, extending the stratigraphic range of the species. The specimen also preserves a probable gullet content, which demonstrates that fish formed part of the diet of this individual. |
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