Euripterus Lacustris #1
This is a tremendous Eurypterid, and a small second specimen. This specimen dates from the Silurian Period and is about 430 million years old. Eurypterus lacustris is one of the two most common Eurypterus fossils found. It is very similar to E. remipes and often found in the same localities, but the eyes are placed at a more posterior position on the carapace of E. lacustris. It is also slightly larger with a slightly narrower metastoma.