Wiktionary
geologic eras
n. (plural of geologic era English)
Usage examples of "geologic eras".
Interested individuals could soar across a planetary landscape that included blue skies, towering forests, and creatures selected from three of Earth's geologic eras and two of its mythological cycles.
He flung it into the carton, find their biology textbook, you look up geologic eras?
This layer, found beneath the ocean floor and in other erosion-free zones, marks the juncture between the Cretaceous and Tertiary geologic eras.
The world is cursed old, James, and there have been whole chapters lived and closed before the dawn of our organic life and the geologic eras connected with it.