440 years ago

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If there is anything cooler than a human skull

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Real North American beaver skulls for sale

Trilobite Fossils, Flexicalymene (B GRADE) fur 440 years agoThese are real fossilized trilobites (Flexicalymene ouzregui)! Trilobites were an extremely adaptive marine arthropod that first evolved roughly 521 million years ago and rapidly spread across the globe. They diversified into approximately 17,000 species and were one of history's most successful animals existing for over 270 million years before extinction! These 1. 5 3" long INCOMPLETE trilobites date back to the Upper Ordovician and were found in