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WARD’S Complete Historical Geology Color Slide Series |
| Three Slide Sets Reveal the Diversity of Ancient Life on Earth |
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Photos of fossil specimens, dioramas, and field stratigraphy illustrate the evolution and extinction of dominant life-forms on Earth. The complete set covers nearly a billion years of Earth history, with examples of the trilobites of the Paleozoic, the dinosaurs of the Mesozoic, and the explosion of mammalian life in the Cenozoic. Several Precambrian examples are also included. Each set comes with an identification key. The comprehensive set contains 225 slides.
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