What is another word for geologic time scale?
Pronunciation: [d͡ʒˌɪəlˈɒd͡ʒɪk tˈa͡ɪm skˈe͡ɪl] (IPA) 
The geologic time scale is a chronological system that divides Earth's history into periods of time marked by significant geological events. There are several other terms that are often used as synonyms for the geologic time scale, such as geological timeline, stratigraphic scale, geochronological scale, and earth history timeline. All of these terms are used to describe the same system of dividing Earth's history into distinct units based on changes in the fossil record, geological events, and other markers. While the exact names and terminology may vary, the underlying concept of dividing geologic time into different periods is a core concept in the study of geology and the history of the Earth.
