International chronostratigraphic chart with notations

This French version of the International Chronostratigraphic Charter, originally published in English in August 2016 on the occasion of the 35 IGC, integrates the alphanumeric notations for eons, eras, systems, series and stages.

The charters and more detailed information on GSSPs are available on the website of the International Commission on Stratigraphy (ICS) http://www.stratigraphy.org.

The CMYK and RGB codes as well as the Stratigraphic Chart notations can be downloaded below:

Colour 2022 V7 poster

Rating 2022 V2