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600 MILLION YEARS OF LIFE ON EARTH
This Life Line Wall Chart is a "must" for every pre-history lover, every teacher and every class room. It has 207 different life forms (including plants) placed in the proper time period, showing the environment of that period. Each life form is identified by number and matched by name in the six page instructional folder that accompanies each wall chart. Also includes instructions on class room use. Accordian folded.
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