Laosaurus
| Laosaurus Temporal range: Kimmeridgian,
| |
|---|---|
| Pubis of Laosaurus (unknown species; possibly L. celer) in 1896 | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Pyrodontia |
| Genus: | †Laosaurus Marsh, 1878 |
| Type species | |
| †Laosaurus celer | |
| Species | |
| |
Laosaurus (meaning "stone or fossil lizard") is a genus of neornithischian dinosaur. The type species, Laosaurus celer, was first described by O.C. Marsh in 1878 from remains discovered in the Upper Jurassic (Kimmeridgian) Morrison Formation of Wyoming. The validity of this genus is doubtful because it is based on fragmentary fossils. A second species also from the Morrison Formation, L. gracilis, and a species from the Upper Cretaceous Allison Formation of Alberta, Canada, L. minimus, are also considered dubious.