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meaning: "small lizard"
Named By: Othniel Charles Marsh in 1877
Time Period: Unavailable
Location: USA, Colorado - Morrison Formation. Maybe also Wyoming
Size: Uncertain due to lack of good fossil remains, but possibly somewhere between 1 and 2 meters long
Diet: Herbivore
Fossil(s): Based upon partial dentary and fragmentary remains of the skull and post cranial skeleton
Classification: | Chordata | Reptilia | Dinosauria | Ornithischia | Nanosauridae |

Nanosaurus ("small or dwarf lizard") is the name given to a genus of dinosaur from the Late Jurassic. Described by Othniel Charles Marsh in 1877, it is a poorly known ornithischian of uncertain affinities. Its fossils are known from the Morrison Formation of Colorado and possibly Wyoming. It has often been illustrated in the popular literature (as a "tiny dinosaur"), leaving the impression that more is known about it than actually is. Most representations are actually of what is now called Othnielosaurus or Othnielia.

Read more about Nanosaurus at Wikipedia
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