3.5" Lobatopteris Fossils Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Gem Bone Some genera even include “raptor”

Some genera even include “raptor” in their scientific names

The Three Primary Body Sections (Tagmata):

Seymchan's composition is notable for its high iridium levels

helping paleontologists understand how Tyrannosaurus rex developed from juvenile to apex predator

3.5" Lobatopteris Fossils Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Gem Bone Some genera even include “raptor”Location: Francis Creek Shale Formation, Illinois Weight: 8. 9 Ounces Dimensions: 3. 8 Inches Long, 2. 8 Inches Wide, 0. 9 Inches Thick (Nodule) Leaf Dimensions: 3. 5 Inches Long, 3 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 tropical delta