278 PALAEONTOLOGY. 



ccelian crocodiles ; but they combine a dinosaurian femur, a 

 lacertian form of tooth, and a lacertian structure of the pec- 

 toral and probably pelvic arch with these crocodilian charac- 

 ters ; having distinctive modifications, as the moniliform 

 spinal canal, in which, however, the almost contemporary 

 Bhynchosaur participates. It would be interesting to ascer- 

 tain whether the caudal vertebrae are characterized, as in the 

 Thuringian Protorosaur, by double diverging spinous processes. 



Genus Belodon, Von Meyer. 



Sp. Belodon Plieningcri. — The reptile from the upper white 

 keuper sandstone of Wirtemberg, described by Plieninger,* 

 agrees in its essential characters so closely with the thecodont 

 Saurians of the Bristol conglomerate as to add to the proba- 

 bility of both belonging to the same lower mezozoic period. 

 Three vertebras are modified to afford adequate attachment to 

 the iliac bones in Belodon, and the femur shews the third 

 trochanter, affording the same evidence of affinity to Bino- 

 sauria as in the English Thecodonts. 



Genus Cladyodon, Ow. 



Sp. Cladyodon Lloydii, — In the Memoir on the Triassic 

 Bed Sandstones of Warwick, by Murchison and Strickland, 

 published in 1840, in the 2d series of the Geological Transac- 

 tions, vol. v., a tooth, which is an extremely rare fossil in those 

 English formations, was figured in pi. xxviii., fig. 6. 



Having had the opportunity of studying the original 

 specimen and fragments of some others of seemingly the 

 same species from the new red sandstones of Warwick and 

 Leamington, the writer recognized the affinity of the reptile 

 possessing those teeth to the thecodont reptiles of the Bristol 

 conglomerate, and indicated what appeared to be a generic 



* Wiirtemb. natu-rf. Jahreshefte, viii., Jahrg. 1857, p. 380. Jaeger's 

 Phytosaarus appears to have been founded on casts of the sockets of the teeth 

 of Belodon. 



