Geological history of Earth
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The geological history of Earth follows the major geological events in Earth's past based on the geologic time scale, a system of chronological measurement based on the study of the planet's rock laye
Artist's conception of a protoplanetary disc
Artist's rendition of a fully-frozen Snowball Earth with no remaining liquid surface water
Pangaea
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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 Ca
Geological history of Earth
…earliest-known supercontinent Rodinia, began to break apart. The continents later recombined to form Pannotia, 600 to 540 million years ago, then finally Pangaea, which broke apart 200 million years ago. The present pattern of ice ages began about 40 million years ago, then intensified at the end of the Pliocene…
The supercontinent Pangaea in the early Mesozoic (at 200 Ma)
Alfred Wegener, c. 1924–1930
Appalachian orogeny
Fossil Dicroidium zuberi leaf from the Early Triassic of Argentina. Dicroidium was a ubiquitous tree across much of southern Pangaea during the Triassic period.