298 



MI YNCHOCEPHALIA , 



posteriorly. Mandibular teeth anteriorly forming a closed palisade, 

 but posteriorly distinct and conical. Cervical vertebras more or less 

 opisthoccelous in type species. Manus very sbort. 



Hyperodapedon gordoni, Huxley \ 



The type species. The number of rows of palatine teeth exceed- 

 ing those of the maxilla (fig. 68) ; upper teeth with subcylindrical 

 crowns. Cervical vertebra) opisthoccelous. Length estimated to 

 exceed 2,000 ; length of skull 0,160, width of do. 0,210. 



Hob. Europe (England). 

 R. 699. A split slab of sandstone, containing the nearly entire 

 {Fig.) skeleton ; from the Keuper of Lossiemouth near Elgin. 

 Described and figured by Huxley in the ' Quart. Journ. 

 Geol. Soc' vol. xliii. pp. 675 et seq. pi. xxvi., woodcuts 1 

 and 4. The former woodcut is reproduced in fig. 67, and 

 a view of the right palato-maxilla given in fig. 68. 



Presented by Rev. Dr. G. Gordon, 1886. 

 Eig. 68. 



Byperodapedon gordoni. — Oral surface of the right palato-maxilla 

 from the Trias of Elgin. \. 



