Mixosaurus was a small ichthyosaur, measuring  long and weighing . The largest specimens would have measured over  in length. It possessed a long tail with a low fin, suggesting it could have been a slow swimmer, but also possessed a dorsal fin for stability in the water.
Mixosaurus was a small ichthyosaur, measuring  long and weighing . The largest specimens would have measured over  in length. It had a lengthy tail with a low fin, suggesting it could have been a sluggish swimmer, but also possessed a dorsal fin for stability in the water.