3.5" Lobatopteris Fossils Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Abelisaur playing a key role in

playing a key role in Miocene marine ecosystems

The cones were preserved through permineralization

making it one of the most versatile apex predators of its era

alongside howardites (mixtures of eucrite and diogenite material) and eucrites (basaltic rocks from Vesta with different mineral compositions)

3.5" Lobatopteris Fossils Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Abelisaur playing a key role inLocation: 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