Welcome to the Subcommission on Ordovician Stratigraphy

This is the homepage of the Subcommission on Ordovician Stratigraphy (SOS). The Ordovician community is a dynamic, international group of scientists investigating all aspects of the Earth system during the Ordovician Period. Our community gathers in both in traditional in-person meetings and through virtual conferences.

Ordovician Meetings

See the Conferences page for a list of upcoming events.

Ordovician News

The annual Ordovician News provides an in-depth overview of the activities of members of our community and contact information to facilitate strengthing scientific connections. See the latest issue and the backlog of the Ordovician News page.

Ordovician News Newsletter