Updated Jul 24, 2026 · v3.0
A system of dating that classifies geological strata ( stratigraphy) in time.
The geologic time scale ( GTS) is a system of chronological dating that classifies geological strata ( stratigraphy) in time. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events in geologic history. Expand and scroll down for more detailed view of timescale.
5 years on Google Play
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