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Definitions and Synonyms of geological era | Another word for geological era | What is geological era?

Definition 1: a major division of geological time; an era is usually divided into two or more periods - [noun denoting time]

Synonyms for geological era in the sense of this definition

(geological era is a kind of ...) the time of the physical formation and development of the earth (especially prior to human history)

(... is an instance of geological era) approximately the last 63 million years

(... is an instance of geological era) from 230 million to 63 million years ago

(... is an instance of geological era) from 544 million to about 230 million years ago

(geological era is a part of ...) a unit of geological time during which a system of rocks formed

"ganoid fishes swarmed during the earlier geological periods"

(... is part of geological era) the longest division of geological time

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