RESTORATION OF SEYMOURIA BAY WREN SIS BROILI 237 



reptiles in Permian times of similar structure and habits is evi- 

 denced by Kadaliosaurus, among others. And all these must have 

 come from a common amphibian ancestry, so far back in Carbonifer- 

 ous times as to permit great structural diversity among both the 

 reptiles and the temnospondyls in early Permian times, too great 

 to warrant the assumption that all similar characters in the two 

 classes are the result of heredity. 



The relationships of Seymouria are, on the one hand, closest 

 with Limnoscelis, on the other with Labidosaurus, but differing 

 so markedly from both as to merit a co-ordinate independent 

 position for the genus, which I prefer to call of family value — the 

 Seymouriidae. 



