2.4" Annularia Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Mercenaria offering collectors direct paleontological evidence

offering collectors direct paleontological evidence of this remarkable transitional whale

and plant diversity in North America

Moldavite is a rare and extraordinary tektite

capable of precise maneuvering and rapid directional changes

2.4" Annularia Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Mercenaria offering collectors direct paleontological evidenceLocation: 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