4.3" Pecopteris Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Pappocetus These ancient animals are especially

These ancient animals are especially notable for their hard exoskeleton

Thorax (middle): 2–61 overlapping segments enabling flexibility and movement

Deinotherium giganteum was remarkable for its enormous size

This Barite and Vanadinite mineral set brings together two highly collectible specimens known for their distinct physical properties and visual appeal

significantly surpassing the size of modern sharks

4.3" Pecopteris Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Pappocetus These ancient animals are especiallyLocation: Francis Creek Shale Formation, Illinois Weight: 1 Pound 1. 5 Ounces Dimensions: 4. 9 Inches Long, 2. 7 Inches Wide, 1. 2 Inches Thick (Nodule) Leaf Dimensions: 4. 3 Inches Long, 1. 5 Inches Wide The item pictured is the one you will receive. Pensylvanian Age, 370 million years ago Pecopteris 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