Crossword puzzle clue "geological time span"

Here are the possible solutions for geological time span clue

Answer
Clue
Relevancy
eon
Clue
Great geological time span
Geological span
Long geological span
Definition
a long period of time, also AEON
era
Clue
Geological time span
Geological span
Definition
a main division of geological time
aeon
Clue
Geological span
Definition
the largest division of geological time, composed of several eras, also EON
epoch
Clue
Geological span
Definition
an important period of time, also EPOCHA
week
Clue
Time's time span

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