ORDER V 



THEROMORPHA 



is] 



ends ; epicondylar foramen not observed. Ulna very stont, with prominent 

 olecranon process. Pelvic bones massive, coossified ; acetabulum closed. 

 Hind limb slightly shorter than the fore, and digits rather smaller ; the five 

 ungual phalanges clawed. P. bombifrons, P. serridens, Owen ; P. baini, Seeley. 



? Tapinocephalus, Anthodorij Owen. , Karoo Formation; South Africa. 



Elginia, Newton. Known only by the skull, which is about 15 cm. long, 

 triangular, coarsely sculptured, and provided with a number of paired bosses 

 and spinous or horn-like defences. These occur along the posterior and lateral 

 margins, and on the parietal, frontal, and nasal elements. Teeth with slightly 

 constricted base and serrated crowns. Supposed Trias of Elgin, Scotland. 



Procolophon, Owen (Fig. 285). Skull about 5 cm. long, short and tri- 

 angular, not externally sculptured. Orbits greatly enlarged, and temporal 



/ ' 



Fig. 2S5. 



Procolophon- triguaiceps, Owen. Karoo Formation (Permian or Trias); South Africa. Restoration of skull 

 from superior (A), inferior (B), and lateral (C) aspects, also part of the pectoral arch, slightly reduced, ac, 

 Glenoid cavity for humerus ; bs, Basisphenoid ; co, Coracoid ; ecpt, Ectopterygoid ; epco, Epicoracoid ; /. 

 Frontal ; icl, Interclavicle ; ipt, Interpterygoid vacuity ; j, Jugal ; I, Lachrymal ; Itf, Lateral temporal vacuity ; 

 md, Mandible; mx, Maxilla ; na, Nasal; nor, Anterior nares ; orb, Orbit; p, Downward ectopterygoid proa 

 pa, Parietal ; pin, Pineal foramen ; pi, Palatine; pmx, Premaxilla ; prf, Prefrontal; pt, Pterygoid ; ptna, Pos- 

 terior nares ; ptf, Postfrontal ; pto, Postorbital ; qj, Quadrato-jugal ; qn, Quadrate ; st, Supratemporal or pro- 

 squamosal ; sq, Squamosal; r, Vomer (from A. S. Woodward). 



arcade pierced by a slight vacuity. Teeth conical ; a series of minute teeth 

 present on vomer and pterygoids. Interclavicle T-shaped, with elongated 

 arms ; epicoracoid notched. Karoo Formation ; South Africa. 



Aristodesmus, Seeley. Lower Trias; Switzerland. ? Phanerosaivrus, v. Meyer. 

 Permian ; Saxony. 



Family 2. Pariotichidae. Cope. 



Teeth in more than one series in one or both jaivs, and with cylindric roots ; 

 vertebrae ossified. Permian. 



Otocoelus, Cope. Skull about 12 cm. long, externally sculptured, but 

 without bosses. Dorsal carapace consisting of a series of twelve or more 



