laurasia

• Nom propre désignant un supercontinent hypothétique qui, selon la théorie de la tectonique des plaques, aurait existé dans le passé géologique et se serait ensuite fragmenté en Amérique du Nord, en Europe et en Asie.

A proper noun referring to a hypothetical supercontinent that, according to plate tectonic theory, existed in the geological past and later broke up into North America, Europe, and Asia.

indénombrable · nom propre

1. Ancient supercontinentC1formalscientific

   A hypothetical supercontinent that existed during the late Paleozoic and early Mesozoic eras, which later broke apart to form North America, Europe, and Asia.

   Laurasie

   • Laurasia is believed to have separated from Gondwana around 200 million years ago.
   • The breakup of Laurasia led to the formation of the Atlantic Ocean.
   • Fossil evidence supports the existence of Laurasia as a distinct landmass.