Image 1 Caption: Continenal drift since 250 Myr Before Present (BP).

Features:

1. Continenal drift is, of course, a major manifestation of plate tectonics.

2. Image 1 shows the breakup of the supercontinents Pangaea, Laurasia, and Gondwana.

3. The geologic periods shown are the Permian (298.9 ± 0.2 -- 252.2 ± 0.5 Myr BP), Triassic (252.2 ± 0.5 -- 201.3 ± 0.2 Myr BP), Jurassic, (201.3 ± 0.6 -- 145 ± 4 Myr BP) Cretaceous, (145 ± 4 -- 66 Myr BP) and Quaternary (2.588 ± 0.005 -- present Myr BP)---our brief shining hour upon the stage.

   

4. Image 2 Caption: An animation of the breakup of Pangaea.

5. For further explication, see the continental drift videos in Plate tectonics videos below (local link / general link: plate_tectonics_videos.html):

   EOF

Images:

1. Credit/Permission: USGS, before circa 2005 / Public domain.
   Download site: USGS: Historical perspective.
   Image link: Itself.
   
2. Credit/Permission: U.S. Geological Survey (USGS), 2005 (uploaded to by User:Nicke L, 2006) / Public domain.
   Image link: Wikipedia: File:Pangea animation 03.gif.