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1st Author:
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Calver, M.A. 
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2nd Author:
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Ramsbottom, W.H.C. 
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3rd Author:
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Year:
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1961 | 
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Title:
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Stratigraphical Palaeontology. In: J.R. Earp et al.: Geology of the Country around Clitheroe an Nelson. | 
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Reference:
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Memoir of the Geological Survey of Great Britain, Expl. one-inch Geol. Sheet 68, New Series: 174-207, pl.10,11; London. | 
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Keywords:
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Clitheroe and Nelson | 
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Link:
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