The International Commission on Stratigraphy is the largest and oldest constituent scientific body in the International Union of Geological Sciences (IUGS). 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.
News & Meetings
- ICS chart containing the Quaternary and Cambrian GSSPs and new stages (v 2018/07) is now released! [2018-07-13]
- Collapse of civilizations worldwide defines youngest unit of the Geologic Time Scale[2018-07-12]
- STRATI 2019 will be held at Milano, Italy, 2-5 July 2019[2017-08-22]
- Official launch of the GSSP of the Chattian Stage (Oligocene Series), Monte Cagnero section, Italy, May 13, 2017[2017-08-21]
- New official website of the Triassic Subcommission available now[2017-08-21]
- Revised ICS Statutes ratified by IUGS EC[2017-05-15]


