2.9" Pecopteris Clintoni Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Septarian Actinocrinites Multiradiatus and Macrocrunus Verneuilianus

Actinocrinites Multiradiatus and Macrocrunus Verneuilianus Crinoid

adaptable dinosaur thriving in a dangerous and competitive prehistoric world

This anatomical adaptation suggests that Diplomystus was well-suited to capturing prey swimming at or just below the surface

allowing many species to curl into a defensive ball—a behavior called enrollment

2.9" Pecopteris Clintoni Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Septarian Actinocrinites Multiradiatus and Macrocrunus VerneuilianusLocation: Francis Creek Shale Formation, Illinois Weight: 5. 2 Ounces Dimensions: 3. 2 Inches Long, 2. 1 Inches Wide, 0. 4 Inches Thick (Nodule) Leaf Dimensions: 2. 9 Inches Long, 1. 1 Inches Wide The item pictured is the one you will receive. Pensylvanian Age, 370 million years ago Pecopteris Clintoni 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