1895. 1 441 [Cope. 



Pariasaurus rcssouvii Seeley, loc. cit., 1892, p. 333, PI. xix, Figs. 

 3, 4. 

 Permo-Trias of South Africa. 



Pariasaurus minor Seeley, loc. cit., p. 354, 1892, Figs. 10, 11. Propap- 

 pus minor Seeley. 

 Permo-Trias of South Africa. 



Anthodon Owen. 



Catal. Foss. Bepiiles South Africa Brit. Mus., 1876, p. 14. Seeley, Philos. 

 Trans. Roy. Soc, 1888, p. 95. 



Anthodon serrarius Owen, loc. cit., p. 14, PI. xiii. 

 Permo-Trias of South Africa. 



Tapinocephalus Seeley. 



Philos. Trans. Roy. Soc, 1888, p. 95 ; Owen, Catal. Foss. Reptilia South 

 Africa Brit. Mus., 1876, p. 1, Nomen Nudum. 



Tapinocephalus atherstonii Owen, loc. cit. Pis. i, ii. Figs 1-3. 

 Permo-Trias of South Africa. 



DIADECTID^. 

 Cope, Proceeds. Amer. Philos. Soc, 1880, p. 8 ; Z. c, 1882, p. 448. 



There are three genera of this family known, as follows : 



Teeth much compressed ; a canine Diadectes Cope. 



Teeth less compressed, robust ; no canine ; os tabulare not produced ; top 



of head without dermal scuta Empedias Cope. 



Teeth compressed, with an apex ; no canine ; os tabulare produced into 



a tuberosity or horn ; top of head scutate Chilonyx Cope. 



The species of this family are of robust character, and have stout limbs 

 with strong claws. The spines of the verlebroe are short and robust, and 

 the peculiar hyposphen-hypanlrum articulation, elsewhere known only in 

 the Camarasauridae of the Jura, is present. lutercentra present so far as 

 known. 



Diadectes Cope. 



Proceeds. Amer. Philos. Soc, 1878, p. 505, 1880, p. 8. 



Diadectes sideropelicus Cope, I. c 

 Permian of Texas. 



Empedias Cope. 



Proceeds. Amer. Philos. Soc, 1883, p. 634. Empedocles, I. c, 1878, p. 516 ; 

 American Naturalist, 1878, April ; I. c April, 1880 (preoccupied). 



