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meaning: "Fossil lizard"
Named By: Othniel Charles Marsh in 1878
Time Period: Upper Jurassic, Upper Cretaceous
Location: USA, Wyoming - Morrision Formation. Canada, Alberta
Size: Uncertain
Diet: Herbivore
Fossil(s): Very partial and fragmentary remains
Classification: | Chordata | Reptilia | Dinosauria | Ornithischia | Ornithopoda | Hypsilophodontidae |

Laosaurus (meaning "stone or fossil lizard") is a genus of neornithischian dinosaur. The type species is Laosaurus celer, first described by O.C. Marsh in 1878 from remains from the Oxfordian-Tithonian-age Upper Jurassic Morrison Formation of Wyoming. The validity of this genus is doubtful because it is based on fragmentary fossils. A second species from the Morrison Formation, L. gracilis, and a species from the late Cretaceous of Alberta, Laosaurus minimus, are also considered dubious.

Read more about Laosaurus at Wikipedia
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