Lateral-to-Sagittal Back Movements and Thrinaxodon Puzzle (IMAGE)

Harvard University, Department of Organismic and Evolutionary Biology

Lateral-to-Sagittal Back Movements and Thrinaxodon Puzzle

Caption

1. Lateral-to-Sagittal: Illustration comparing the back movements of a lizard, which uses primarily lateral (side-to-side) movements, and a mammal, which uses sagittal (up-and-down) movements when running. Illustrations by Stephanie Smith. 2. Thrinaxodon Puzzle: Life reconstruction of Thrinaxodon, an extinct mammal forerunner, show how the backbone was pieced together over evolutionary time. Illustration copywrite April Neander.

Credit

1. Illustrations by Stephanie Smith. 2. Illustration by April Neander.

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