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Updated: May 27, 2025
It affords the thickest stratum of pure vegetable matter hitherto detected in any secondary rock in England. One seam of coal of good quality has been worked three and a half feet thick, and there are several feet more of pyritous coal resting upon it. Terebratula fimbria, Sowerby. Inferior Oolite marl. Rhynchonella spinosa, Schloth. Pholadomya fidicula, Sowerby. One-third natural size.
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