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The smallest unit of geologic time is an age, followed by epoch, period, era, eon, and super eon.
It is a "period" and then an "epoch".
How long is an epoch? Longer than an era but shorter than an age of course!
It is an age. The second smallest is a period.
The order of the geologic time intervals is Eon, Era, Period, Epoch.
We are living in the Holocene Epoch of the Quaternary Period in the Cenozoic Era of geologic time.
After an era, the next smallest division of time would be an epoch. An epoch is equal to around 10,000,000 years, where as an era is 100,000,000 years.
Eon, Era, Period, Epoch (from largest to smallest)
We are living in the Holocene Epoch of the Quaternary Period in the Cenozoic Era of geologic time.
We live in the Cenozoic era. Currently, we are in the Holocene epoch of the Quaternary period. Humans evolved in the Pleistocene epoch which was also in the Quaternary period.
Chron Age Epoch Period Era Eon
We are living in the Holocene Epoch of the Quaternary Period in the Cenozoic Era of geologic time.