Parasaurolophus walkeri
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Parasaurolophus Temporal range: Late Cretaceous, 76.5–74.5 Ma |
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| P. cyrtocristatus skeletal mount at the Field Museum of Natural History. | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Order: | †Ornithischia |
| Suborder: | †Ornithopoda |
| Family: | †Hadrosauridae |
| Tribe: | †Parasaurolophini |
| Genus: |
†Parasaurolophus Parks, 1922 |
| Type species | |
| †Parasaurolophus walkeri Parks, 1922 |
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| Species | |
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†P. walkeri Parks, 1922 |
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| Synonyms | |
and see text. |
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†P. walkeri Parks, 1922
†P. tubicen Wiman, 1931
†P. cyrtocristatus Ostrom, 1961
and see text.
and see text.
Parasaurolophus (/ˌpærəsɔːˈrɒləfəs/ PARR-ə-saw-ROL-ə-fəs or /ˌpærəˌsɔːrəˈloʊfəs/ PARR-ə- SAWR-ə-LOH-fəs; meaning "near crested lizard" in reference to Saurolophus) is a genus of ornithopod dinosaur that lived in what is now North America during the Late Cretaceous Period, about 76.5–74.5 million years ago. It was a herbivore that walked both as a biped and a quadruped. Three species are recognized: P. walkeri (the type species), P. tubicen, and the short-crested P. cyrtocristatus. Remains are known from Alberta (Canada), and New Mexico and Utah (United States). The genus was first described in 1922 by William Parks from a skull and partial skeleton found in Alberta.
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