Pangaea

Science / Geology / Pangaea: A large continental landmass that existed from about 300 million years ago through about 200 million years ago. It included most of the continental lithosphere present at that time. It has since broken up and the fragments have drifted to become the configuration of Earth's present day continents.

Laurasia

Science / Biology / Laurasia: The northern part of the supercontinent of Pangaea, composed of the present-day North America, Europe, and Asia. MORE

Panthalassa

Science / Geology / Panthalassa: A hypothetical primeval ocean covering two-thirds of the world except for the continent of Pangaea. MORE

Gondwana

Science / Biology / Gondwana: Name applied to the ancient (Paleozoic-early Mesozoic) southern hemisphere supercontinent that rifted apart to form present-day Antarctica, India, Africa, Australia, and South America. The southern pa MORE

Laurentia

Science / Biology / Laurentia: Name applied to the core of North America in the times from the breakup of the precambrian supercontinent Rodinia to the formation of Pangaea. MORE

Triassic Period

Science / Biology / Triassic Period: The first period of the Mesozoic Era between 225 and 185 million years ago. Pangaea began to breakup during this time. The ancestors of dinosaurs were present, as were early mammals and mammal-like re MORE

Jurassic Period

Science / Biology / Jurassic Period: Middle period of the Mesozoic Era, between 185-135 million years ago. Characterized by the (possible) origin of angiosperms and the continued split of the worldwide supercontinent of Pangaea. MORE

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