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Other Locations: Fossils of Persististrombus latus have also been recorded in the Balearic Islands (Mallorca) and the Canary Islands (Fuerteventura
Probably an excellent Daspletosaurus tooth
Such findings not only shed light on their feeding behaviors but also help scientists reconstruct the ecological niches these massive birds once filled
harsh climates of the Ice Age
key to understanding Paleozoic marine ecosystems
4.2" Macroneuropteris Fossils Leaf Mazon Creek Nodule Pennsylvanian Age Split-Pair Epidote Other Locations: Fossils of PersististrombusLocation: Francis Creek Shale Formation, Illinois Weight: 11. 9 Ounces Dimensions: 4. 7 Inches Long, 2. 6 Inches Wide, 1 Inch Thick (Nodule) Leaf Dimensions: 4. 2 Inches Long, 1. 3 Inches Wide The item pictured is the one you will receive. Pensylvanian Age, 370 million years ago Macroneuropteris Fossil Leaf 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