The Working Group on Stratigraphic Information System (SIS) aims to promote and coordinate the gathering of selected stratigraphic information worldwide.

SIS
time scale
- Overview
- GSSPs
- Other scales
- Time Scale Charts
- Cenozoic
- Mesozoic
- Paleozoic
- Precambrian
standards and lexicons - Tasks
- Stratigraphic guide

 education and research - Tasks
database center
Database center		news and reports
Report for 2002