neocomian

Neocomian

Ne`o*co"mi*an\, n. [From Neocomium, the Latin name of Neuchatel, in Switzerland, where these rocks occur.] (Geol.) A term applied to the lowest deposits of the Cretaceous or chalk formation of Europe, being the lower greensand.
Webster's Revised

Neocomian

Ne`o*co"mi*an\, a. (Geol.) Of or pertaining to the lower greensand.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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