Mussaurus
Mussasaurus Temporal range: Late Triassic - Early Jurassic
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Genus: | Mussaurus
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Mussaurus patagonicus Bonaparte & Vince, 1979
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Mussaurus (meaning "mouse lizard") was a genus of plant-eating dinosaur known from 20 to 37 cm-long (8 to 15 in) fossilized juvenile and infant skeletons, which are the smallest dinosaur skeletons known. Mussaurus was a very early dinosaur, dating from the Late Triassic Period about 215 million years ago. The infant skeleton was small, about the size of a small lizard.
The juveniles had short heads and necks, long tails, and large eye sockets. Adults had longer necks, and probably reached 5 m (16 ft) in length, and weighed 120 kg (260 lb).
Mussaurus is classified as a incertae sedis sauropodomorph dinosaur, and may be a prosauropod or an early sauropod. Coloradisaurus may be an adult Mussaurus. Mussaurus lived in Argentina. Mussaurus makes a brief appearance in The Lost World by Michael Crichton.
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