Ordovian

Ordovian
Ordovian Or*do"vi*an, a. & n. (Geol.) Ordovician. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Gasconadian Stage — The Gasconadian Stage is the first stage of the Ordovician geologic period in North America and of the Lower Ordovician Canadian Epoch, coming immediately after the Late Cambrian Trempealeauan and preceding the middle Canadian Demingian. The… …   Wikipedia

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