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Regnosaurus northamptoni, a stegosaurian dinosaur from the Lower Cretaceous of southern England

Published online by Cambridge University Press:  01 May 2009

Paul M. Barrett  and
Paul Upchurch
Paul M. Barrett
Affiliation:
Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, U.K.
Paul Upchurch
Affiliation:
University Museum of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, U.K.
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Abstract

The type specimen of Regnosaurus northamptoni Mantell, a partial right mandible, is redescribed and compared with a wide variety of dinosaurian taxa. We suggest that Regnosaurusis not an ankylosaur or a sauropod as previously thought, but represents the fragmentary remains of a ‘primitive’ stegosaur. Regnosaurus and Huayangosaurus share two derived characters, suggesting that these two genera should be provisionally regarded as sister taxa. The implications of these findings for stegosaur evolution and biogeography are discussed briefly.

Type
Articles
Information
Geological Magazine , Volume 132 , Issue 2 , March 1995 , pp. 213 - 222
Copyright
Copyright © Cambridge University Press 1995

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