Oriskany | a. [ From Oriskany, in New York. ] (Geol.) Designating, or pertaining to, certain beds, chiefly limestone, characteristic of the latest period of the Silurian age. [ 1913 Webster ] Oriskany period, a subdivision of the American Paleozoic system intermediate or transitional in character between the Silurian and Devonian ages. See Chart of Geology. [ 1913 Webster ]
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