jul 6, 251000000 BC - Eurypterids
Description:
Pterygotids, which could grow more than two meters long, roamed shallow, shoreline basins for 35 million years. Because of the creatures’ size, the long-toothed grasping claws in front of their mouth, and their forward-facing, compound eyes, scientists have long believed these sea scorpions to be fearsome predators.
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Extinctions and fossils throughout the past
Include the 5 mass extinctions, the first fossil record of H...
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