GSA Geologic Time Scale - Geological Society of America
27 Apr 2026 at 2:13pm
At GSA you'll find the resources, confidence, and connections you need to reach fulfilling new heights in your geoscience career.
Geologic time scale - Wikipedia
27 Apr 2026 at 6:56am
The following five timelines show the geologic time scale to scale. The first shows the entire time from the formation of Earth to the present, but this gives little space for the most recent eon.
Geologic Time Scale - Geology (U.S. National Park Service)
28 Apr 2026 at 10:01am
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
28 Apr 2026 at 5:29am
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
25 Apr 2026 at 4:35am
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 | U.S. Geological Survey - USGS.gov
27 Apr 2026 at 8:08am
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 : Divisions, Periods and Eons - Geology Science
27 Apr 2026 at 9:37pm
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 Chronostratigraphic Chart
28 Apr 2026 at 4:39am
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 - Geological Time Line
27 Apr 2026 at 8:01am
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
28 Apr 2026 at 5:00am
Rise of civilization and agriculture. Extinction of large mammals in northern hemisphere. Modern humans appear. Four major glaciations cause rapid shifts in ecological communities. Extensive radiation of flowering plants and mammals. First hominids appear. Coevolution of insects and flowering plants. Dogs and bears appear.
WHAT IS THIS? This is an unscreened compilation of results from several search engines. The sites listed are not necessarily recommended by Surfnetkids.com.
27 Apr 2026 at 2:13pm
At GSA you'll find the resources, confidence, and connections you need to reach fulfilling new heights in your geoscience career.
Geologic time scale - Wikipedia
27 Apr 2026 at 6:56am
The following five timelines show the geologic time scale to scale. The first shows the entire time from the formation of Earth to the present, but this gives little space for the most recent eon.
Geologic Time Scale - Geology (U.S. National Park Service)
28 Apr 2026 at 10:01am
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
28 Apr 2026 at 5:29am
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
25 Apr 2026 at 4:35am
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 | U.S. Geological Survey - USGS.gov
27 Apr 2026 at 8:08am
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 : Divisions, Periods and Eons - Geology Science
27 Apr 2026 at 9:37pm
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 Chronostratigraphic Chart
28 Apr 2026 at 4:39am
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 - Geological Time Line
27 Apr 2026 at 8:01am
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
28 Apr 2026 at 5:00am
Rise of civilization and agriculture. Extinction of large mammals in northern hemisphere. Modern humans appear. Four major glaciations cause rapid shifts in ecological communities. Extensive radiation of flowering plants and mammals. First hominids appear. Coevolution of insects and flowering plants. Dogs and bears appear.
WHAT IS THIS? This is an unscreened compilation of results from several search engines. The sites listed are not necessarily recommended by Surfnetkids.com.
