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II.—On the Occurrence of a New Fossiliferous Horizon in the Ordovician Series of the Lake-District
Nicholson, H. Alleyne, Marr, John E.Volume:
4
Language:
english
Journal:
Geological Magazine
DOI:
10.1017/s0016756800193926
Date:
August, 1887
File:
PDF, 402 KB
english, 1887