The ichthyosaur is one of the best known prehistoric animals. The body of the Ichthyosaur is streamlined and torpedo shaped, with a dorsal fin on the back for stabilization and two pairs of paddles for steering, and a fishlike tail for swimming. Because of the ball and socket joints in the backbone of the Ichthyosaur, it had great flexibility and probably was able to reach great speeds.
The Children's Museum of Indianapolis
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