Postdoctoral fellow Anders Lindskog examined limestone samples from modern-day Scandinavia to unravel why marine life boomed during the Ordovician Period roughly 487 to 443 million years ago. (Photo courtesy Seth Young)
The researchers analyzed iodine and calcium levels within rocks, which provided a window into the oxygen content of the ancient oceans. (Photo courtesy Seth Young)
Seth Young, an associate professor of Geology at FSU, embarked on a mission with colleagues at FSU and Lund University in Sweden to understand the oxygen levels in the ancient seas of the Ordovician Period. (Photo: Devin Bittner)