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Geologic Timescale Interval Search

Click on the 'About Search' button for more information.

All timescales are available for export on the Export Resources page.

Sources

The sources listed below were used to compile geologic timescale data. Complete citations and data use licenses are provided for each resource accessed through the interface and Geospecimens API.

Information Sources

Paleobiology Database The Paleobiology Database is a public database of paleontological data that anyone can use, maintained by an international non-governmental group of paleontologists. You can explore the data online in the Navigator, which lets you filter fossil occurrences by time, space, and taxonomy, and displays their modern and paleogeographic locations; or you can download the data to your own computer to do your own analyses.
Macrostrat Macrostrat is a platform for the aggregation and distribution of geological data relevant to the spatial and temporal distribution of sedimentary, igneous, and metamorphic rocks as well as data extracted from them.
Citation: Peters, S. E. (2018). Macrostrat: A platform for geological data integration and deep-time earth crust research. Geochemistry, Geophysics, Geosystems, 19(4), 1393-1409.
GeoTimeCPTs - The Geologic timescale database A repository that contains data representations of various geological timescales (GTS) for use with the Generic Mapping Tools (GMT) and GPlates and other applications including the Geomagnetic Polarity Timescale according to Gee and Kent (2007).
International Commission on Stratigraphy The ICS is the authoratative body responsible for the publication of the International Chronostratigraphic Chart, a visual presentation of the time periods and hierarchy of stratigraphic names of Earth's geological history
Deep Time Knowledge Base (DeepTimeKB) Deep Time Knowledge Base: This repository contains the documents, materials, source codes we collected and developed for a deep time knowledge base. The work is based on an NSF funded project. For more details please check the website: https://www.deeptimekb.org.

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