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View of Earth, 152 million years ago timebar 152 million years ago

brown square Reconstructing the past
brown square What’s going on here?
brown square See continents move through time
brown square Ancient life
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Earth
152 million years ago

Jurassic

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Reconstructing ancient Earth
spacer image These remarkable figures are produced by C.R. Scotese and the PALEOMAP project. Geologists call these illustrations paleogeographic reconstructions, because they illustrate the reconstructed geography of our Earth at some time in the past.
spacer image Making a paleogeographic reconstruction begins by examining several lines of evidence including: paleomagnetism, magnetic anomalies, paleobiogeography, paleoclimatology, and geologic history. By combining all available evidence, geologists are able to construct paleogeographic maps, such as these, that interpret how the geography might have appeared at a specific location and time in the past. Paleogeographic maps are continually being refined as more evidence is collected.
spacer image To find out more about how paleogeographic reconstructions are made visit the PALEOMAP project site.

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What’s going on here?
  • Although the western states are still under construction, North America is beginning to really taking shape! Notice the subduction zone that extends along the entire North and South American coasts.

  • Coming soon!

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  • Learn more about this time period at the PALEOMAP project site.
  • Learn more about geologic time.
  • Learn more about plate tectonics.

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Scotese, C. R., 1997. Paleogeographic Atlas, PALEOMAP Progress Report 90-0497, Department of Geology, University of Texas at Arlington, Arlington, Texas, 37 pp.

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http://www.nature.nps.gov/grd/usgsnps/pltec/sc152ma.html
This page was last updated on 12/16/98