Crossword puzzle clue "long geological time"

Here are the possible solutions for long geological time clue

Answer
Clue
Relevancy
eon
Clue
Long long long long long long long time
Long geological time period
Long geological time
Very long geological time unit
Really long geological time
Long, long, long time
Long, long, long time period
Definition
a long period of time, also AEON
aeon
Clue
Long geological time period
Definition
the largest division of geological time, composed of several eras, also EON

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