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geologic time scale
Periods are subdivided into periods of time know as epochs.
Eons, Eras,Epochs, and period
Time. The game.
Geological eras can be divided into periods, epochs and ages.
A table that divides up earths histoty into eons, eras,periods,and epochs
A table that divides up earths histoty into eons, eras,periods,and epochs
geologic time scale
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The geological time scale is the history of the earth. This is in the eras period and epochs.
Periods are subdivided into periods of time know as epochs.
Geologic history is divided, from largest amount of time to smallest amount of time, by eons, eras, periods, and epochs.
Geologists divide Earth's history into supereons (there's only one, the precambrian), supereons are divided into eons (there are four), eons are divided into eras, eras are divided into periods (Periods may be the most common divisions you read about. The Jurassic is a period), periods are divided into epochs, epochs are divided into ages.After the first era (the Cryptic) The various divisions are mostly determined buy the emergence of some form of life.
Geologic history is divided, from largest amount of time to smallest amount of time, by eons, eras, periods, and epochs.
The Paleozoic, the Mesozoic and the Cenozoic are all divided into periods and epochs.
Eons, Eras,Epochs, and period
By eons, eras, epochs, and periods.