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Images in Time

Illustrations by Stephen Greb provided to KGS for educational use

These illustrations of ancient life are provided for educational uses in time lines, coloring books, science reports, and presentations. Copy them as needed or just use them as guides for your own drawings. The images are arranged by time. The numbers before the title of the image are in millions of years before the present. When using images, please reference Stephen Greb (Images In Time. http://www.uky.edu/KGS/)

Precambrian Time

• 4,600 Beginning of the Earth
  1. Volcanic activity creates crust
  2. Rain water creates seas
• 3,800 Oldest age-dated rocks
• 3,500 Fossil stromatolites, mounds built by cyanobacteria
• 1,750 Oldest fossil cells with a nucleus (eukaryotes)
• 1,500 Oldest multi-celled organisms (sea weed)
• 670 Oldest fossil jellyfish
  1. Late Precambrian Period scene, based on Ediacara fauna

Go to Key Links in Earth History for more info and images about earth history

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