a1 Centre National de la Recherche Scientifique, UMR 8538, Laboratoire de Géologie de l'Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, France
a2 Oxford University Museum of Natural History, Parks Road, Oxford, OX1 3PW, UK
The anterior end of a lower jaw bearing long slender teeth, from the Bathonian Stonesfield Slate of Oxfordshire, was hitherto referred to the crocodilian Teleosaurus. It is reinterpreted as belonging to a ctenochasmatid pterosaur reminiscent of Gnathosaurus. It is the earliest known representative of the Ctenochasmatidae, and one of the earliest known pterodactyloids. The diversity of pterosaurs from the Stonesfield Slate is higher than previously recognized, comprising at least three taxa.
(Received May 23 2011)
(Accepted December 16 2011)
(Online publication January 10 2012)