2.4" Annularia Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Globidens Tooth Fossil evidence suggests that eurypterids

Fossil evidence suggests that eurypterids occupied various ecological niches within their habitats

with fossils found in modern-day Montana (Judith River Formation) and Alberta (Oldman Formation)

Hematite is a very common mineral composed of iron oxide

The color of the coat varies from dark to light

2.4" Annularia Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Globidens Tooth Fossil evidence suggests that eurypteridsLocation: Francis Creek Shale Formation, Illinois Weight: 6 Ounces Dimensions: 2. 9 Inches Long, 2. 3 Inches Wide, 0. 9 Inches Thick (Nodule) Leaf Dimensions: 2. 4 Inches Long, 2. 3 Inches Wide The item pictured is the one you will receive. Pensylvanian Age, 370 million years ago Annularia Fossil Leaves The Mazon Creek fossils date back to the Pennsylvanian sub period (roughly 307 million years ago). During this time, the area was a tropical delta