48 PROCEEDINGS OF THE GEOLOGICAL society. _— [ Noy. 24, 
cast of a mandible, which I have described (‘ Quarterly Journal of 
the Geological Society,’ 1858, vol. xv. p. 454) as probably apper- 
taining to Stagonolepis, did not belong to that reptile, the teeth of 
which possess short and comparatively obtuse crowns. I think it 
more than probable that this mandible, with its great recurved and 
pointed teeth, which had large pulp-cavities and were implanted in 
distinct alveoli, may have belonged to a Dinosaurian reptile. 
I know of no further evidence of the existence of Dinosauria in 
rocks of Triassic age in Western Europe than that which I have now 
brought forward; but it is sufficient to demonstrate the existence of, 
at fewest, two genera in the German Trias, and of three in that of 
Britain. 
3. Divosavria from the Trias of the Ural Mountains and India. 
In the extreme east of Europe, namely in the Ural Mountains, 
there is a series of rocks which have been supposed to be Permian, 
but which there now appears to be every reason to consider to be 
of Triassic age. Remains of reptiles associated with those of La- 
byrinthodonts from these rocks have been described and figured by 
D’Eichwald (‘ Lethza Rossica’) and by Von Meyer (Palzontogra- 
phica, Bd. xv.). Now the teeth and jaws of the Deuterosaurus of 
D’Eichwald, no less than the vertebrae which are referred to the same 
genus by this author, have a strongly Dinosaurian aspect; and though 
the evidence is incomplete, I am greatly inclined to think that Deu- 
terosaurus isa Dinosaurian. But the specially interesting feature of 
the Ural Triassic fauna is the association with the Labyrinthodonts 
and possible Dinosauria, of the Ehopalodon, so singular for its great 
canine tusks, in front of and behind which were comparatively small 
“incisors” and “molars;” for no one who compares Fhopalodon 
with the Galesaurus of Prof. Owen, from the Dicynodont-yielding 
sandstones of South Africa, can fail to see that the two forms are 
closely allied. 
On the other hand, Von Meyer describes humeri and portions of 
crania from the same deposits, the nearest resemblance to which he 
finds in the corresponding parts of the skeleton of Dicynodon itself. 
Thus there is a clear affinity between the Triassic fauna of the Ural 
and that of South Africa. But in the Ural we have reached a point 
halfway between the West of England and Central India. I have 
already (‘“ Paleontologica Indica,” in ‘Memoirs of the Geological 
Survey of India,’ 1865) shown reason for the belief that the Central- 
Indian and the African faunee of the “ Poikilitic” period were 
closely allied; and I have described a small Thecodont Saurian 
(Ankistrodon) from the Indian beds. Thanks to Professor Oldham 
(the Director of the Indian Survey), I am now enabled to go a step 
further; for among the remains which last reached me from him 
there are portions of a Crocodilian closely allied to Belodon; and 
thus the Indian fauna, together with that of the Ural, binds the 
Triassic fauna of Western Europe with that of Africa*. 
* A fragment of a jaw from Malédi reminds me forcibly of Rhopalodon. 
