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creating lush prehistoric ecosystems
These adaptations contributed to their evolutionary success
which is the signature feature of the lambeosaurine hadrosaurids
alongside several associated limb elements such as two ulnae
which were suspension feeders extracting microorganisms from the water column using these specialized appendages
4.1" Lobatopteris Fossils Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Rebbachisaurus Tooth creating lush prehistoric ecosystemsLocation: Francis Creek Shale Formation, Illinois Weight: 12 Ounces Dimensions: 4. 1 Inches Long, 3. 4 Inches Wide, 0. 9 Inches Thick (Nodule) Leaf Dimensions: 4. 1 Inches Long, 3. 4 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