This animation shows the summer temperature isotherms from a climate model of the earth shortly after the breakup of Pangea (about 200 million years ago). Each frame of the animation shows the shape and location of the "surface" within the atmosphere where the temperature is constant at some value (displayed in the caption of each frame), going from coldest (in the upper-mid atmosphere, not at the top!) to warmest (at the surface). Both the atmospheric thickness and the topography are grossly exaggerated vertically to make it easier to see the structures. Colors of the land surfaces indicate elevation; colors of the isothermal surfaces indicate the temperature.