xenacanthus devonian fish |
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| navigate by keyword : xenacanthus shark fish animal aquatic marine carnivore predator hunter creature evolution fins extinct extinction devonian triassic age era period epoch vertebrate ocean sea organism nature paleo art primeval primitive prehistoric life swimming paleozoic mesozoic undersea underwater genus species wild wildlife teeth perch aucha rendering carnivorous lived seas |
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| Xenacanthus was a carnivorous marine shark that lived in Devonian and Triassic Period seas |
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