188 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Jan. 12, 
nature and affinities with the Dinosauria, as based upon certain 
parts of the skeleton, especially the “caudal vertebra, chevron 
bones, ilium, and tibia” *. These two genera are assigned by Prof. 
Huxley to two distinct families, the Megalosauride and Scelido- 
sauride—Palwosaurus being placed with the Megalosauroid, and 
Thecodontosaurus with the Scelidosauroid type. 
Their remains were found in a mass of dolomitic conglomerate on 
the eastern side of Durdham Down, near Clifton, Bristol. ‘The 
whole being in a very fragmentary state, as might be anticipated 
from the nature of the matrix in which they were entombed, the 
most extreme care was bestowed both upon the removal of the dis- 
membered fragments and their subsequent development, as now 
exhibited in the Museum of the Bristol Philosophical Institution. 
The spot where these remains were found is no longer recognizable 
or determinable, haying been many years ago quarried away, and 
the site built upon. Fortunately, however, we have records of the 
exact position; and many years since, W. Sanders, Hsq., F.R.S., of 
Clifton, during a careful geological survey of the city of Bristol and 
its suburbs, undertaken for the Inspectors of the General Board of 
Health, most accurately determined the site of the reptilian quarry 
on the eastern side of Durdham Down (figs. 4 & 5). 
Fig, 4.—Section from the city of Bristol to the Reptilian Quarry on 
Durdham Down, 320 feet above mean sea-level, showing the position 
of the Con glomerate upon the Coal-measures, Millstone Grit, and 
Carboniferous Limestone, and the LInas resting on the New Red 
Marls and Sandstone. 
N.W. 8.H. 
New Red 
Reptilian Conglom. Dolomitic City of 
bed. & Sandst. Lias. Conglomerate. Bristol. 
. 
a 
‘ 
4 
. 
1 
r 
NB 
Carboniferous Tang Millstone grit. Coalenecrte €8. 
Fig. 5.—Section from the city of Bristol, across Brandon Hill, 260 
feet above the sea, to the Reptilian Quarry, 320 feet, on Durdham 
Down tm the Carboniferous Limestone. 
N.W. i SE. 
On 5 Dolo- 
FS mitie 
Reptilian Dolomitie % 5 
bed. Conglom. % 7 Lias. hill. glom. Bristol. 
a 
iS 
a Brandon Con- City of 
Oo 
| 
329 
Carboniferous lim 1 Millstone grit. Coal-measures. 
* Quart. Journ. Geol, Soc. vol. xxvi. pp. 42-45, 
