Albertosaurus
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Albertosaurus Temporal range: Late Cretaceous, 71–68 Ma |
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| Cast in the Rocky Mountain Dinosaur Resource Center in Woodland Park, Colorado | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Order: | Saurischia |
| Suborder: | Theropoda |
| Family: | †Tyrannosauridae |
| Subfamily: | †Albertosaurinae |
| Genus: |
†Albertosaurus Osborn, 1905 |
| Species: | †A. sarcophagus |
| Binomial name | |
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Albertosaurus sarcophagus Osborn, 1905 |
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| Synonyms | |
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Deinodon sarcophagus (Osborn, 1905) |
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Deinodon sarcophagus (Osborn, 1905)
Albertosaurus arctunguis Parks, 1928
Deinodon arctunguis (Parks, 1928)
Albertosaurus (/ælˌbɜːrtəˈsɔːrəs/; meaning "Alberta lizard") is a genus of tyrannosaurid theropod dinosaurs that lived in western North America during the Late Cretaceous Period, about 70 million years ago. The type species, A. sarcophagus, was apparently restricted in range to the modern-day Canadian province of Alberta, after which the genus is named. Scientists disagree on the content of the genus, with some recognizing Gorgosaurus libratus as a second species.
As a tyrannosaurid, Albertosaurus was a bipedal predator with tiny, two-fingered hands and a massive head that had dozens of large, sharp teeth. It may have been at the top of the food chain in its local ecosystem. While Albertosaurus was very large for a theropod, it was much smaller than its larger and more famous relative Tyrannosaurus, growing to nine to ten metres long and weighing less than possibly 2 metric tons.
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