Eon, Era, and Epoch: APEX :D
eon>era>period
The order of the geologic time intervals is Eon, Era, Period, Epoch.
archean eon
Eon, epoch, period, era
I don't know the plural of eon but the answer is more than 1 eon
I am currently in the Phanerozoic Eon.
the Hadean eon
Paleozoic eon
It was in the Phanerozoic Eon.
how was the phanerozoic eon divided.
It is the Phanerozoic Eon.