Crossword puzzle clue "geological eras"

Here are the possible solutions for geological eras clue

Answer
Clue
Relevancy
aeon
Clue
Eras upon eras
Two or more eras
Definition
the largest division of geological time, composed of several eras, also EON
eon
Clue
Eras upon eras
Two or more geological eras
Two or more eras of geological time
At least two geological eras
Definition
a long period of time, also AEON
eons
Clue
Eras upon eras
Geological eras
Definition
EON, a long period of time, also AEON

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