Crossword Clue:

Immensely long stretches

Answer	Crossword Clue
EONS	Immensely long stretches
DECADES	Long stretches
EPOCHS	Long stretches

AEONS	Long stretches
AGES	Long stretches
EONS	Long stretches
LENGTHS	Long stretches.
ERAS	Long stretches
EONS	Unimaginably long stretches
EONS	Long, long stretches
EONS	Very long stretches

EONS	Extremely long stretches
EONS	Long geologic stretches
AEONS	Incredibly long stretches
ANOS	Long stretches in Spain
AEONS	Incredibly long stretches (Var.)
EONS	Very long stretches of time