5.3" Lobatopteris Fossils Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Seymchan An exceptional window into mammalian

An exceptional window into mammalian dental evolution and locomotor specialization

Dimension: 1 Inch Long

These fossilized shells demonstrate extraordinary structural integrity

and the thigh muscle was under the skin of the body

Researchers widely believe that such crests served as visual display structures

5.3" Lobatopteris Fossils Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Seymchan An exceptional window into mammalianLocation: Francis Creek Shale Formation, Illinois Weight: 1 Pound 4 Ounces Dimensions: 5. 3 Inches Long, 2. 5 Inches Wide, 1. 3 Inches Thick (Nodule) Leaf Dimensions: 5. 3 Inches Long, 2. 5 Inches Wide The item pictured is the one you will receive. Pensylvanian Age, 370 million years ago Lobatopteris 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