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Formed around 300 million years ago, the break-up of Pangaea about 180 million years ago gave rise to 2 new large masses, Gondwana and Laurasia. This was during the age of reptiles (including dinosaurs) and the age of ferns and cycads and conifers - the Permian and Triassic periods.
Gondwana included most of the land masses in today's southern hemisphere, including Antarctica, South America, Africa, Madagascar and Australasia, as well as the Arabian Peninsula and the Indian subcontinent, which have now moved entirely into the northern hemisphere. Laurasia contained the rest of today's northern hemisphere continents including Europe, North America and Asia.
Spinosaurus (meaning "spine lizard") is a genus of spinosaurid dinosaur that lived in what now is North Africa during the Cenomanian to upper Turonian stages of the Late Cretaceous period, about 99 to 93.5 million years ago. Spinosaurus is known to have eaten fish, and most scientists believe that it hunted both terrestrial and aquatic prey. Evidence suggests that it was highly semiaquatic, and lived both on land and in water much like modern crocodilians do.
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