Crossword puzzle clue "long periods geologically"

Here are the possible solutions for long periods geologically clue

Answer
Clue
Relevancy
eons
Clue
Long periods, geologically
One billion years, geologically
Definition
EON, a long period of time, also AEON
eon
Clue
Long long long long long long long time
Long time, geologically
One billion years, geologically
Longest time span, geologically
365 billion days, geologically
Definition
a long period of time, also AEON
cenozoicera
Clue
You're living in it, geologically

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