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albertosaurus

n. A giant fierce carnivorous tyrannosaurus-like dinosaur, of gemus ''Albertosaurus'', discovered in Alberta, Canada.

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Albertosaurus

Albertosaurus (; 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. Although relatively large for a theropod, Albertosaurus was much smaller than its more famous relative Tyrannosaurus, probably weighing less than 2 metric tons.

Since the first discovery in 1884, fossils of more than 30 individuals have been recovered, providing scientists with a more detailed knowledge of Albertosaurus anatomy than is available for most other tyrannosaurids. The discovery of 26 individuals at one site provides evidence of pack behaviour and allows studies of ontogeny and population biology, which are impossible with lesser-known dinosaurs.

Usage examples of "albertosaurus".

We’ve also got a dramatic Albertosaurus, a formidable Chasmosaurus, two dynamic mounts of Allosaurus, an excellent Stegosaurus, plus a Pleistocene-mammals display, a wall covered with casts of primate and hominid remains, a La Brea tar-pits exhibit, a standard evolution-of-the-horse sequence, and a wonderful late-Cretaceous underwater diorama, with plesiosaurs, mosasaurs, and ammonites.