Its primary objective is to precisely define global units (systems, series, and stages) of the International Chronostratigraphic Chart that, in turn, are the basis for the units (periods, epochs, and age) of the International Geologic Time Scale; thus setting global standards for the fundamental scale for expressing the history of the Earth.

New Ordovician Chronostratigraphic Chart by Bergstrom et al. (2008)   2012-01-17

Ordovician Chronostratigraphic Chart

Call for candidates for the positions of ICS Chiarman and Vice Chairman for the 2012-2016   2011-08-30

Dear members of the ICS,

GSSP defined base of Jurassic System (Lower Jurassic Series and Hettangian Stage) was dedicated on August 2011   2011-07-26

GSSP defined base of Jurassic System (Lower Jurassic Series and Hettangian Stage) was dedicated on August 2011.

GSSP defining the base of the Jiangshanian Stage of the Furongian Series and Cambrian System ratified by IUGS   2011-09-01

The GSSP defining the base of the Jiangshanian Stage of the Furongian Series and Cambrian System has been ratified by the IUGS Executive Committee recently.

Annual Meeting of Geological Society of America, Minneapolis, Minnesota, October 9-12, 2011   2011-07-26

Annual Meeting of Geological Society of America, Minneapolis, Minnesota, October 9-12, 2011. Revision of the Precambrian Time Scale, sponsored by the Subcommission on Precambrian Stratigraphy in Theme Session T46 (Application of New Stratigraphic Tools to Precambrian and Igneous Rocks: Challenges and Solutions), and at a "Friends of the Precambrian Meeting".

34th International Geological Congress, Brisbane, Australia, 5-10 August, 2012   2011-07-26

34th International Geological Congress, Brisbane, Australia, 5-10 August, 2012.  ICS working group meeting and business meeting, Subcommission meetings, and the sponsored and related symposia in theme sessions 17, 18, 23, and particularly 35. For details go to http://www.34igc.org/scientific-themes-symposia.php .