Geologic time scale - Wikipedia
14 Feb 2026 at 8:29am
It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks).
GSA Geologic Time Scale - Geological Society of America
14 Feb 2026 at 12:00am
At GSA you'll find the resources, confidence, and connections you need to reach fulfilling new heights in your geoscience career.
Geologic Time Scale - Geology (U.S. National Park Service)
10 Feb 2026 at 9:19pm
Geologic time scale showing the geologic eons, eras, periods, epochs, and associated dates in millions of years ago (MYA).
Geologic Time Scale - Science Notes and Projects
13 Feb 2026 at 1:28am
The Geologic Time Scale or Geological Time Scale (GTS) is a chronological framework that organizes Earth?s history into various units based on geological and paleontological evidence. It divides Earth?s 4.6 billion-year history into hierarchical units such as eons, eras, periods, epochs, and ages.
Geologic time | Periods, Time Scale, & Facts | Britannica
12 Feb 2026 at 10:54am
The geologic time scale is the ?calendar? for events in Earth history. It subdivides all time into named units of abstract time called?in descending order of duration? eons, eras, periods, epochs, and ages.
Geologic Time Scale : Divisions, Periods and Eons - Geology Science
14 Feb 2026 at 12:36am
The geologic time scale (GTS) is a chronological framework that organizes Earth?s 4.6 billion-year history based on major geological and biological events. It allows scientists to classify rocks and fossils not just by type or age, but by their place in the grand history of the planet.
International Commission on Stratigraphy
14 Feb 2026 at 9:12am
This page contains the latest version of the International Chronostratigraphic Chart (v2024-12) which visually presents the time periods and hierarchy of stratigraphic names of Earth's geological history.
Geologic Time Scale | U.S. Geological Survey - USGS.gov
13 Feb 2026 at 2:11am
The Geologic Time Scale above is a helpful reference to use along with the information provided below. The left half shows a timeline of Earth?s geologic history which is split into Eons, Eras, Periods, and Epochs and how many millions of years ago (MYA) these occurred.
Geologic Time Scale - Geological Time Line
14 Feb 2026 at 7:03am
Geologists have divided Earth's history into a series of time intervals. These time intervals are not equal in length like the hours in a day. Instead the time intervals are variable in length. This is because geologic time is divided using significant events in the history of the Earth.
Geologic Time Scale: A List of Eons, Eras, and Periods
14 Feb 2026 at 7:24am
The geologic time scale is a system used by scientists to describe Earth's history in terms of major geological or paleontological events (such as the formation of a new rock layer or the appearance or demise of certain lifeforms).
WHAT IS THIS? This is an unscreened compilation of results from several search engines. The sites listed are not necessarily recommended by Surfnetkids.com.
14 Feb 2026 at 8:29am
It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks).
GSA Geologic Time Scale - Geological Society of America
14 Feb 2026 at 12:00am
At GSA you'll find the resources, confidence, and connections you need to reach fulfilling new heights in your geoscience career.
Geologic Time Scale - Geology (U.S. National Park Service)
10 Feb 2026 at 9:19pm
Geologic time scale showing the geologic eons, eras, periods, epochs, and associated dates in millions of years ago (MYA).
Geologic Time Scale - Science Notes and Projects
13 Feb 2026 at 1:28am
The Geologic Time Scale or Geological Time Scale (GTS) is a chronological framework that organizes Earth?s history into various units based on geological and paleontological evidence. It divides Earth?s 4.6 billion-year history into hierarchical units such as eons, eras, periods, epochs, and ages.
Geologic time | Periods, Time Scale, & Facts | Britannica
12 Feb 2026 at 10:54am
The geologic time scale is the ?calendar? for events in Earth history. It subdivides all time into named units of abstract time called?in descending order of duration? eons, eras, periods, epochs, and ages.
Geologic Time Scale : Divisions, Periods and Eons - Geology Science
14 Feb 2026 at 12:36am
The geologic time scale (GTS) is a chronological framework that organizes Earth?s 4.6 billion-year history based on major geological and biological events. It allows scientists to classify rocks and fossils not just by type or age, but by their place in the grand history of the planet.
International Commission on Stratigraphy
14 Feb 2026 at 9:12am
This page contains the latest version of the International Chronostratigraphic Chart (v2024-12) which visually presents the time periods and hierarchy of stratigraphic names of Earth's geological history.
Geologic Time Scale | U.S. Geological Survey - USGS.gov
13 Feb 2026 at 2:11am
The Geologic Time Scale above is a helpful reference to use along with the information provided below. The left half shows a timeline of Earth?s geologic history which is split into Eons, Eras, Periods, and Epochs and how many millions of years ago (MYA) these occurred.
Geologic Time Scale - Geological Time Line
14 Feb 2026 at 7:03am
Geologists have divided Earth's history into a series of time intervals. These time intervals are not equal in length like the hours in a day. Instead the time intervals are variable in length. This is because geologic time is divided using significant events in the history of the Earth.
Geologic Time Scale: A List of Eons, Eras, and Periods
14 Feb 2026 at 7:24am
The geologic time scale is a system used by scientists to describe Earth's history in terms of major geological or paleontological events (such as the formation of a new rock layer or the appearance or demise of certain lifeforms).
WHAT IS THIS? This is an unscreened compilation of results from several search engines. The sites listed are not necessarily recommended by Surfnetkids.com.
