30 GUIDE TO THE FOSSIL REPTILES, AMPHIBIANS, FISHES. 
Wall-oases 
9, 10. 
Table-case 
33. 
Wall-eases 
9, 10. 
Cases S, T. 
in Wall-case 10 and Table-case 33. Oudenodon is a contempo¬ 
rary reptile without tusks. Gordonia (Wall-case 9), from the 
Trias of Elgin, Scotland, has diminutive tusks. 
Fig. 26.— Skull and mandible of Dicynodon lacerticeps (a) and Oudenodon 
baini (b), left side-view, from the Triassic Karoo Formation of Cape 
Colony ; one-third nat. size. (Table-case 33.) 
Sub-order 3.—Pariasauria. 
The Pariasauria are so named from the best-known genus 
Pariasaurus (“ helmet-cheek-lizard ”), and approach the early 
Amphibia or Labyrinthodonts more closely than any of the 
other Anornodontia. The well-preserved skeleton of Paria¬ 
saurus baini (Plate IV.), discovered by Professor Seeley in 
the Karoo Formation of Cape Colony, exhibits most of the 
principal characters of the skeleton (Case T). Other portions 
of Pariasaurus in Case S are also important. The cheek is 
completely covered with bone, and the pineal foramen for a 
median eye in the top of the head is especially large. There 
is only a single occipital condyle. The teeth extend from the 
margin of the jaw over most of the bones of the palate. 
Eemains of the ribs show that they were single-headed. 
Pariasaurus is a very massive animal, usually from 8 to 10 
feet in length, and seems to have been a vegetable-feeder, 
