3.5" Annularia Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Eutrichiurides These biochemical signatures preserved within

These biochemical signatures preserved within the shell matrix enable paleontologists to map the ecological roles these megafauna occupied within Late Pleistocene Madagascar's vanished ecosystems

South Dakota

and ostracods)

a semi-aquatic

preserving the delicate structure of the ferns

3.5" Annularia Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Eutrichiurides These biochemical signatures preserved withinLocation: Francis Creek Shale Formation, Illinois Weight: 1 Pound 13. 7 Ounces Dimensions: 5. 4 Inches Long, 3. 7 Inches Wide,1. 4 Inches Thick (Nodule) Leaf Dimensions: 3. 5 Inches Long, 2. 1 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