| 1. | The northern continents remained together as a land mass called Laurasia.
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| 2. | The collision of Gondwana and Laurasia occurred in the late Palaeozoic.
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| 3. | It attached to Laurasia completely around 280 mya during the Late Permian
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| 4. | It was later accreted to the continental margin of Laurasia.
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| 5. | Laurasia was created near the end of the Silurian Period.
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| 6. | Both placentals and marsupials are mostly known from Laurasia during the Cretaceous.
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| 7. | During the Jurassic Period ( 150 ), Cimmeria finally collided with Laurasia.
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| 8. | This genus and related genera at the time lived on the supercontinent Laurasia.
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| 9. | Supercontinent Laurasia had not yet separated into three continents.
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| 10. | In the Cretaceous, Laurasia split into the continents of North America and Eurasia.
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