ORDER I 



STEGOCEPHALIA 



129 



examples from the Lower Permian of Lebach, near Saarbriicken, are described, of 

 which 102 are figured. The remains, lacking usually the tail, occur here in siderite 

 nodules. A. decheni, v. Meyer. 



Sparagmites, Fritsch ; Discosaurus, Credner (Fig. 193, G). Lower Permian; 



Saxony and Bohemia. 



Chelidosa urus, Fritsch. 

 Like Archegosaurus, but 

 with broader and shorter 

 skull, and no lachrymals. 

 Lower Permian ; Bohemia. 

 C. vranyi, Fritsch. 



Adinodon, Gaudry (Fig. 

 218). Basiocciput ossified. 

 Vomers each with one large 





Imx 





IPor 



Fig. 216. 



Archegosav/rus decheni, v. Meyer. Lower Permian ; Lebach, near 

 Saarbriicken. Young individual with traces of gill arches. 1/1 (after 

 H. v. Meyer). 



Archegosaurus decheni, v. Meyer. 

 Skull of adult individual, V-2- Per- 

 mian ; Lebach, near Saarbriicken. 

 Pm.r, Premaxilla ; Mx, Maxilla; La, 

 Lachrymal ; Prf, Prefrontal ; J'tf, 

 Postfrontal ; Por, Postorbital ; St, 

 SO, Supratemporals ; Sq, Squamosal ; 

 Pa, Parietal; QuJ, Quadrato-jugal ; 

 Ep, "Epiotic" (^Supratemporal). 



tooth and numerous rugosities. Vertebrae rhachitomous. Lower Permian 

 of Autun, France, and Bhenish Prussia. 



Gaudrya, Cochleosaurus, Fritsch. Lower Permian ; Niirschan, Bohemia. 

 Euchirosaurus, Gaudry. Permian ; France. 



Sclerocephalus, Goldfuss (Onchiodon, Gein. ; Weissia, Branco). Over 1 m. 

 VOL. II K 



