On the Maxillary Bone of a new Dinosaur ( Priodontognathus Phillipsii ), contained in the Woodwardian Museum of the University of Cambridge

Abstract

A mong the few Reptilian fossils collected by the late Dr. Forbes-Young, and presented to the Woodwardian Museum of the University of Cambridge by Sir Charles Young and Henry Young, Esq., was a not very promising specimen showing tooth-sockets, imbedded in a yellow sandstone, containing a variety of Pecten vagans . It was in association with bones from the Wealden of Tilgate Forest, but may be of Threat Oolite age; though I have collected a similar Pecten from a purple clay low down in the Wealden series at Lulworth. In 1869 the matrix of this fossil was removed, so as to expose the external aspect of the jaw; and as in those days I saw no reason for thinking it other than an Ignanodont maxillary bone, the species was briefly described in the ‘Index to the Aves, Onithosauria and Reptilia in the Woodwardian Museum’ (pp. xix. and 82) as Iguanodon Phillipsii . Mentioning to the Woodwardian Professor (Prof. Hughes) my desire to describe this and the other species which are briefly indicated in my published catalogues prepared for the late Prof. Sedgwick, Prof. Hughes met me with great cordiality, and afforded every assistance in examining the specimens. I offer my thanks to Prof. Hughes for this courtesy, which enables me to give effect to a request reiterated by Prof. Sedgwick during the last years of his life. After cleaning the fossil a little, I found several successional teeth, which closely resembled the teeth of Scelidosaurus and the teeth attributed by Prof. Huxley to