What is "eozoic"

Eozoic \E`o*zo"ic\, a. [See Eozo["o]n.] (Geol.) Of or pertaining to rocks or strata older than the Paleozoic, in many of which the eozo["o]n has been found.

Note: This term has been proposed for the strata formerly called Azoic, and is preferred especially by those geologists who regard the eozo["o]n as of organic origin. See Arch[ae]an. [1913 Webster] ||