Stig M. Bergström

Stig M. Bergström's research focuses on Ordovician and Silurian geology, using microscopic fossils called conodonts (extinct jawless eel-like animals whose tooth-like hard parts are common in rocks) along with carbon and oxygen isotope signatures preserved in rock layers to date and correlate rock sequences across the world. This work helps build precise geological timescales and reconstruct ancient ocean chemistry, climate, and environmental events, such as extinction episodes and meteorite impacts, from roughly 480 to 420 million years ago.

Publication output has declined over the last decade, dropping from a peak of about 10 papers in 2018 to only a few or none per year from 2021 onward.

Generated by claude-sonnet-5 from public bibliographic data · Jul 20, 2026