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The supercontinent Pangaea in the early Mesozoic (at 200 Ma) Pangaea or Pangea (/ pænˈdʒiːə / pan-JEE-ə) [1] was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. [2] It assembled from the earlier continental units of Gondwana, Euramerica and Siberia during the Carboniferous approximately 335 million years ...
Map of Pangea showing locations of Lystrosaurus remains as yellow disks. Distorted boundaries of modern continents shown as grey lines. (Distributions for lystrosaurs and three other Permian and Triassic fossil groups used as biogeographic evidence for continental drift and certain land bridges.)
Continental drift is the theory, originating in the early 20th century, that Earth's continents move or drift relative to each other over geologic time. [1] The theory of continental drift has since been validated and incorporated into the science of plate tectonics, which studies the movement of the continents as they ride on plates of the Earth's lithosphere.
Heavy rains in southern Brazil revealed the remains of a carnivorous dinosaur belonging to the Herrerasauridae family, which roamed Pangea during the Triassic 233 million years ago. This would ...
The Triassic (/ traɪˈæsɪk / try-ASS-ik; sometimes symbolized 🝈) [8] is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago (Mya), to the beginning of the Jurassic Period 201.4 Mya. [9] The Triassic is the first and shortest period of the Mesozoic Era and the seventh ...
Fossil footprints are the most common kind of early dinosaur fossil in the eastern United States. [57] As the Triassic ended, Pangaea was breaking up into separate continents again. Rift valleys formed along the east coast as the North American, European and African plates diverged. [58] This process created rifts down the east coast to Florida ...
Distribution of four Permian and Triassic fossil groups used as biogeographic evidence for continental drift, and land bridging. The continent of Gondwana was named by the Austrian scientist Eduard Suess, after the region in central India of the same name, which is derived from Sanskrit for "forest of the Gonds". [6]
The geology of the Appalachians dates back more than 1.2 billion years to the Mesoproterozoic era [1] when two continental cratons collided to form the supercontinent Rodinia, 500 million years prior to the development of the range during the formation of Pangea. The rocks exposed in today's Appalachian Mountains reveal elongate belts of folded ...