542 On the Fossil Fishes of the Carboniferous Limestone Series of Great Britain. 
The thin beds of limestone forming the base of the Titterstone Clee coalfield are 
continued in a north-easterly direction, and well exposed at Oreton and Farlow. 
The Carboniferous Limestones there overlie a series of yellow sandstones which 
constitute the upper beds of the Old Red series. At Oreton the limestone is 
extensively quarried, and affords good sections of the general thickness and character 
of the limestone. The beds are thicker than at Farlow half a mile distant, though 
the arrangement is the saine. ‘he middle and lower portions of the limestones 
are the most fossiliferous. The principal fossil remains are those of Brachiopods, 
Spirifer and Rhynconella being most abundant. Bryozoan remains are numerous 
and those of Crinoids and a Crustacean have been found. The most important 
remains, however, are those of the fishes, which have been described in preceding 
The fauna indicates a deep-sea condition, 
The series of Oolitic Limestones exhibit similar structural agencies in their 
formation to those of the Carboniferous Limestone of Bristol, and that of the margin 
of the South Wales coalfield. The “Jumbles” or Clee Hill marble, has been worked 
for decoration purposes, it is the thickest of the Oolitic beds. The accompanying 
sketch (fiy. 5), will exhibit the relative positicn of the beds in the Oreton and Farlow 
district. The fish remains were got from the gray Oolitic Limestone near the 
base of the section. 
FIGURE 5D. 
SEctron showing the Mounrarn Limestone at Fartow, in SuropsHireE (from Morris and Roberts). 
1. Yeilow Sandstone with concretionary masses of Limestone. 
2, Gray Oolitic Limestone (from which large palatal teeth were got), 3 feet 6 inches. 
3. | Sandrock with nodules of cale spar, 2 feet. 
Gray Oolite Limestone (Jumbles), 4 feet 6 inches. 
. Soft sandy rock and clays with feruginous beds, 4 feet 6 inches. 
. Black clay, 4 inches. 
. Brown clays 2 feet, dip about 60° S.E. 
. Gray crinoidal Limestone, with bryozoa, 4 feet 6 inches. 
4 
5 
6. Gray Limestone, very shelly, 1 foot. 
7 
8 
9 
. Dark gray clays with concretionary Limestone, 6 feet. 
10. Sandy beds with thin beds of Limestone, 3 feet. 
11. Thin bedded bands of sandy Limestone, with concretions of argillaceous Limestone. 
Derbyshire—The Mountain Limestone in Derbyshire is generally a pale gray, 
thick-bedded and massive deposit of carbonate of lime, it contains a few partings 
of shale and clay, and some beds of volcanic origin called “ toad-stone.” Its base 
has never been reached, but its thickness is estimated at 4,000 to 5,000 feet. 
The limestone occupies a large extent of surface, reaching from Bakewell to 
