3.2" Pecopteris Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Cave bear It is one of the

It is one of the oldest known meteorites

occupying similar ecological niches in slow-moving or stagnant aquatic environments alongside other amphibians

Central to this ancient lake-bed

While howardites represent composite material from both eucrite and diogenite sources

These forests were among the first recognizably modern rainforests

3.2" Pecopteris Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Cave bear It is one of theLocation: Francis Creek Shale Formation, Illinois Weight: 9. 5 Ounces Dimensions: 3. 8 Inches Long, 3. 1 Inches Wide, 0. 7 Inches Thick (Nodule) Leaf Dimensions: 3. 2 Inches Long, 3 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 tropical delta