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Key terms: ichthyosaurs like fish ft family fossil triassic jurassic meters forms similar reptiles dolphin nevada tail fin pdf extinct museum genus species genera skeleton nicholls clade coast smaller animals evolved ryosuke specimens manabe whales length primitive reached variety biology cretaceous possibly earliest advanced ancestors formation infraorder marine reptile prehistoric streamlined late triassic million years Search external links cited by footnotes on Wikipedia page Ichthyosaur: |
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