spiny shark: Quick Facts

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Also Known As	Acanthodii • acanthodian

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phyletic family tree for fishes

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Topics

Climatius Silurian Period Devonian Period Carboniferous Period extinction Early Permian Epoch fish Vertebrate dinosaur chondrichthyan Australopithecus agnathan megalodon pterosaur ichthyosaur chimaera plesiosaur trilobite

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fish: Acanthodii: early jawed fishes

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