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8 Cards in this Set
- Front
- Back
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period in which dinosaurs go extinct
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Cretaceous
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period in which dinosaurs reach large sizes
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Jurassic
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period with first mammals and dinosaurs
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Triassic
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period with "greatest extinction on earth"
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Permian
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period with first reptiles
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Pennsylvanian
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period with coal-forming forests
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Mississippian
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period with first life on land
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Silurian
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period with first fish
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Ordovician
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