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Early pterosaurs possessed long
Some genera even include “raptor” in their scientific names
Seymchan's composition is notable for its high iridium levels
including the Sahara Desert and Assa Zag
amphibians such as frogs and early salamanders
3.5" Lobatopteris Fossils Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Gem Bone Early pterosaurs possessed longLocation: 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