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Earlier versions: 2018 (v. 5.0) | 2012 (v. 4.0) 2009 (v. 3.0) | 1999 (v. 2.0) 1983 (v. 1.0) Read about the changes to v. 4.0 (2012): Commentary GSA Bulletin Article (Walker, et al. 2013) At GSA you'll find the resources, confidence, and connections you need to reach fulfilling new heights in your geoscience career.
Interactive Geological Timescale. This visualisation of the International Commission on Stratigraphy 's Chronostratigraphic Chart uses the SKOS & Time Ontology in OWL representation of it as the Geological Timescale (2020) for its data.
Scientists have put together the geologic time scale to describe the order and duration of major events on Earth for the last 4 1 ⁄ 2 billion years. Some examples of events listed on the geologic time scale include the first appearance of plant life on Earth, the first appearance of animals on Earth, the formation of Earth’s mountains, and ...
The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. 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).
Geologic time scale showing the geologic eons, eras, periods, epochs, and associated dates in millions of years ago (MYA).
Anthropocene as a proposed new time interval of Earth history, partly coincident with the Holocene. Currently, the Anthropocene has an informal designation, with a proposed age span extending from the present to a beginning point between ca. 15,000 yr B.P. and as recent as 1960 CE.
Scale Timeline of Earth’s History Part I: Outdoor Timeline • How old is Earth? • 4,600,000,000 years old (4.6 billion years) • Today’s time line scale: 1m = 100 million years • 4.6 billion years = 46 meters
Geologic time scale with a linear time axis. This time scale is available as a printable .pdf document. You can download this printable time scale and make copies for personal use.
Walker, J.D., Geissman, J.W., Bowring, S.A., and Babcock, L.E., compilers, 2012, Geologic Time Scale v. 4.0: Geological Society of America, doi: 10.1130/2012.CTS004R3C. ©2012 The Geological Society of America. The Cenozoic, Mesozoic, and Paleozoic are the Eras of the Phanerozoic Eon.
Gradstein, F.M, Ogg, J.G., Schmitz, M.D., et al., 2012, The Geologic Time Scale 2012: Boston, USA, Elsevier, https://doi.org/10.1016/B978-0-444-59425-9.00004-4. Previous versions of the time scale and previously published papers about the time scale and its evolution are posted to http://www.geosociety.org/timescale.