152 



LABYEDTTHODONTIA. 



43636. Slab of sandstone exhibiting the outer surface of an imper- 

 fect sculptured bone. The sculpture is pitted. 



Purchased, 1859. 



14675. Fragment of sandstone exhibiting the impression of the outer 

 surface of a bone with pitted sculpture. Purchased, 



33073 Slab of sandstone with portions of a sculptured bone. 



Purchased, 1848. 



Genus METOPOSAURUS, Lydekker (n. nom.). 

 Syn. Metopias, Meyer \ 



Skull (fig. 35) broad, with obtuse muzzle ; palatal vacuities ex- 

 panded in front ; premaxillary vacuities large and double ; orbits 

 large, oval, situated in the anterior half of the skull, and widely 



Fisr. 35. 



Metojposaurus diagnosticiis. — Frontal aspect of the cranium, with the sculpture 

 omitted ; from the Keuper (Upper Trias), near Stuttgart. £ . Letters as 

 in fig. 31. (After E. Fraas.) 



separated from one another ; lyra enclosing an oblong space between 

 orbits and nares ; nares terminal, large, rounded and approximated ; 

 frontals pointed behind, and excluded from the border of the orbit 

 by the junction of the postfrontal with the prefrontal; squamosal, 

 postorbital, and pcstfrontal elongated. Teeth apparently arranged 



1 Neuer Jahrb. 1842, p. 302. Preoccupied by Gory in ]832 for a genus of 

 Colooptera. 



