Jurassic paleogeography

thumb|270x270px|Map of Pangaea around 250 million years ago, at the beginning of the Triassic Pangaea or Pangea ( ) was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from the earlier continental units of Gondwana, Euramerica and Siberia during the Carboniferous period approximately 335 million years ago, and began to break apart about 200 million years ago, at the end of the Triassic and beginning of the Jurassic. Pangaea was C-shaped, with the bulk of its mass stretching between Earth's northern and southern polar regions and surrounded by the s

ancient string of microcontinents that rifted from Gondwana

large shallow body of salt water of the Mesozoic and Cenozoic Eras

inland sea that existed in North America during the mid-to-late Jurassic Period of the Mesozoic Era

historic ocean

chain of active volcanic islands somewhere in the Pacific Ocean during the Triassic