| 31. | Around 190 million years ago, Gondwana and Laurasia split apart due to the widening of the Atlantic Ocean.
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| 32. | Towards the end of the Paleozoic radiolarites formed also along the southern margin of Laurasia near Mashad in Iran.
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| 33. | The northern supercontinent of Laurasia began to break up, as Europe, Greenland and North America drifted apart.
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| 34. | Laurasia was formed from the joining of Laurentia with Gondwana and two smaller continents which had broken off Rodinia.
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| 35. | The Pangaea was a supercontinent until it split into two continents about 200 million years ago _ Laurasia and Gondwanaland.
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| 36. | These, in turn, are in Laurasiatheria, a superorder that had its origin in the extinct continent Laurasia.
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| 37. | Collision between Gondwana and Laurasia to form Pangea occurred in a relatively brief interval, about 50 million years long.
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| 38. | It eventually slammed into the northern land mass, Laurasia, and formed the gigantic folded mountains of the Himalaya.
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| 39. | The Cimmeria continent rifted away from Gondwana and drifted north to Laurasia, causing the Paleo-Tethys to shrink.
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| 40. | Eventually, the air mass would reach the coast of Laurasia and surface convergence resulted in immense amounts of precipitation.
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