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geologic time scale
fossil record geologic time scale
fossil record geologic time scale
The geologic time scale is the system of chronology that organizes the Earth's history based on stratigraphy, or the study of Earth's rock layers and their ages. The geologic time scale is divided into several spans of time. From longest to shortest they are: Eons, eras, periods, epochs, and ages.
Precambrian is the largest division of the geologic time scale.
geologic time scale
geologic time scale
The Paleozoic, the Mesozoic and the Cenozoic are all divided into periods and epochs.
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale