MARINE AND OTHER FOSSILS IN THE YORKSHIRE COAL 
MEASURES ABOVE THE BARNSLEY SEAM, AS SEEN AT THE 
BENTLEY COLLIERY, NEAR DONCASTER. 
BY H. CULPIN. 
{Read Uh November, 1909. Manuscript received 
2nd December, 1909.) 
During the sinking operations to the Barnsley seam at the 
Bentley Colliery, near Doncaster, the opportunity was taken 
of examining the material brought to the surface, with the 
result that the accompanying section (p. 77) and lists of fossils 
(pp. 78-81) can now be put on record. These particulars, it is 
suggested, will be found useful, in conjunction with those from 
Brodsworth (Proc. Yorks. Geol. Soc, 1908, pp. 321-333), in 
their bearing on the exploration of the concealed coalfield east 
of Doncaster. They have already proved very helpful in locating 
position. 
The situation of the Bentley Colliery is 2J miles north of 
Doncaster and 2 J miles east of Brodsworth Colliery. The 
Barnsley Coal was 9 feet 5 inches thick at Brodsworth, and 
was reached at a depth of 1,645 feet below Ordnance Datum. 
At Bentley it was 9 feet 8 inches thick, its depth below Ordnance 
Datum being 1,842 feet. The description of the seam at 
Bentley is as foUows : — 
ft. 
in. 
Soft Coal ... 
... 4 
1 
Parting 
... 0 
4| 
Hard Coal 
2 
9 
Soft Coal ... 
... 2 
5h 
9 
8 
