356 WILMORE : THORNTON, MARTON AND BROUGHTON-IN-CRAVEN. 
are also calcareous shales of considerable thickness, best seen at 
the south-western end. Veins of calcite and occasional occur- 
rences of Barytes arc seen. 
Brown and black shales form the lower beds, then 
come dark limestones, followed by the Caninia bed, more 
dark limestones, and then black shales complete the sequence 
here. 
The maximum width of the cutting is about 50 yards, and 
if we take the average dip as 60°, this would give a maximum 
thickness of 120 feet. The upper beds are very much like those 
of Gill Rock Quarry, and the Caninia bed occurs there unmistak- 
ably. 
Collecting is not nearly so profitable here as in Thornton 
Quarr}', because of the lack of exposed material, and because of 
the difficulty of reaching the beds. The accessible beds are 
fairly fossiliferous, excepting, of course, the dark massive lime- 
stones. The following types occur : — 
Corals : — 
Syringopora ramulosa. 
Zaphrentis Omaliusi, var. ambigua. 
Caninia cornucopioB. 
Michelinia sp. 
Echinodermata and Polyzoa plentiful. Platycrinus does 
not seem quite so common as at Thornton. 
Brachiopods : — 
Athyris planosulcata. 
Seminula, a small form. 
Orthotetes crenistria. 
0. cf. Bristolensis (Vaughan M.S.). 
Chonetes Hardrensis. 
Productus pustulosus. 
P. semireticulatus (Martin). 
P. suhla^vis. 
Spirifer hisulcatus. 
Rhynchonella phurodon (Phillips). 
Rhipidornella Michelini. 
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