PRU-JURASSTC XETRAPOLS. 175 



Bolosaurus Cope. Artinskiau, Texas. 



% GlauGosaurus AVilliston. Artinskian, Texas. 



? Pcdceohatteria Credner. L. Permian, Saxony. 



Pelycosaurs of undetermined position. 



Arrihasaurus Williston. U. Coal Measures, ISTew Mexico. 

 Bathygnathus Ijeidy . Permian, Canada. ( ? Clepsydropid.) 



Order Deinocephalia Seeley. 



Anomodont reptiles, with unreduced quadrates. No supra- 

 temporal element. Postorbital and squamosal meeting above 

 temporal fossa. The basicranium forming a deep wall below the 

 condyle. Glenoid cavity supported solely by the scapula and 

 coi'acoid in typical forms. Limbs modernised. 



Super-Family Tapinocephalid.^. 

 Deinocephalia with a short skvill and short mouth. 

 Tapinocephcdus Owen. M. Permian, S. Africa. 

 Mormosaurus Watson. ,, ,, 



Pnigalion Watson. ,, ,, 



Lamiascmrus Watson. ,, ,, 



Struthiocephalus Haughton. ,, ,, 



Moschosaurus ,, ,, ,, 



Moschops Broom. ,, ,, 



Moschognatlvus Broom. ., ., 



Taurops ,, ,, ,, 



Eccasaurus ,, ,, ., 



Deljyhinognathus Seeley. ,, ,, 



Deuterosaurits Eichwald. Permian, Russia, 

 etc. 



Super- Family Titanosuchid^. 

 Deinocephalia with an elongated mouth. 

 Titanositchus Owen. M. Permian, S. Africa. 



'^. Rho2xdodon¥isch.ev. ,, ,, Russia. 



? Cliorhizodon Twelvetrees. ,, ,, ,, 



? Dinosaurus Fischer. ,, ,, ,, 



Order Dromasauria. 



Anomodonts with very long slender limbs. Large orbits, 

 short pi'e- orbital and temporal region, rounded dorsal contour of 

 skull, and a T-shaped squamosal. 



? descended from Bolosauridee. 



Galechirus Broom. M. Permian, S. Africa. 



Galepus ,, ,, ,, 



Galeops ,, ,, ,, 



? Palceohatteria Ci'edner. L. Permian, Germany. 



