Gorgosaurus [1] ( lat. Gorgosaurus , from other Greek γοργός σαῦρος - terrible or formidable lizard) - a genus of dinosaurs - theropods that lived during the Upper Cretaceous era ( 83.6–66.0 million years ago [2] ) on West North America . Fossil remains were found in the Canadian province of Alberta and possibly in the United States . Paleontologists recognize only the type species - Gorgosaurus libratus , although earlier, due to the scarcity of material, some other species were distinguished in this genus.
| † Gorgosaurus | |||||||||||||||||||||||||||||||||||||||||||||||
 Skeleton Gorgosaurus libratus , Redpath Museum | |||||||||||||||||||||||||||||||||||||||||||||||
| Scientific classification | |||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||||||||||||||||||||||||||||||||||||
| International scientific name | |||||||||||||||||||||||||||||||||||||||||||||||
Gorgosaurus Lambe , 1914 | |||||||||||||||||||||||||||||||||||||||||||||||
| Single view | |||||||||||||||||||||||||||||||||||||||||||||||
† Gorgosaurus libratus Lambe, 1914 | |||||||||||||||||||||||||||||||||||||||||||||||
| Geochronology 83.6–66.0 Ma
◄ Nowadays◄ Cretaceous-Paleogene extinction◄ Triassic extinction◄ Mass Permian Extinction◄ Devonian extinction◄ Ordovician-Silurian extinction◄ Cambrian explosion | |||||||||||||||||||||||||||||||||||||||||||||||
Content
Description
Like most known tyrannosaurids, the gorgosaurus was a two-legged predator weighing more than a ton, with dozens of large, sharp teeth, while the forelimbs were relatively small. The gorgosaurus was most closely associated with the albertosaurus , very similar to it, the main difference is a slight difference in the teeth and bones of the skull, which is why some experts consider G. libratus a type of albertosaurus - Albertosaurus libratus .
The remains of gorgosaurs were found on the shores of the prehistoric sea, located on the territory of modern Canada. It seems that the gorgosaurus was not the dominant predator, since in some areas evidence was found of coexistence with another tyrannosaurid - the daspletosaurus . Although these animals were about the same size, the gorgosaurus was less massive than the daspletosaurus, hence the conclusion was made that the latter was dominant. The gorgosaurus is represented by the most complete set of fossils of all tyrannosaurids - a total of about 20 skeletons were found. Thanks to this, the gorgosaurus is one of the best-studied dinosaurs.
Almost complete skeleton. Royal Tyrrell Museum of Paleontology
Comparison of the size of a man and a gorgosaurus
Computer restoration of appearance
Gorgosaurus attacks a parasaurolophus
Views
- Gorgosaurus libratus — a species described by Lamb in 1914 based on the holotype CMN 2120 found in the Campanian sediments of Canada's . Since the time of the description, several binomens have been synonymous with him, therefore, the species synonymy is extensive [3] :
- Albertosaurus incrassatus (Cope, 1876)
- Albertosaurus libratus (Lambe, 1914)
- Albertosaurus sternbergi (Matthew & Brown, 1922)
- Alberytosaurus libratus (Lambe, 1914)
- Deinodon libratus (Lambe, 1914)
- Dryptosaurus falculus (Cope, 1876)
- Dryptosaurus hazenianus (Hay, 1902)
- Dryptosaurus incrassatus (Cope, 1876)
- Dryptosaurus kenabekides Hay, 1899
- Gorgosaurus sternbergi Matthew & Brown, 1922
- Gorgosaurus sternbergii Matthew & Brown, 1922
- Laelaps falculus cope , 1876
- Laelaps hazenianus Hay, 1902
- Laelaps incrassatus cope, 1876
- Gorgosaurus lancensis - a species described by Gilmore in 1946 based on the holotype CMNH 7541, consisting of a full skull. It was found in the geological formation Hell Montana. In 1988, Becker and colleagues renamed the species Nanotyrannus lancensis .
In Culture
- The gorgosaurus was the main predator of the polar forest in the animated film “ Dinosaur Campaign ”, where it is shown possibly accurately.
- Gorgosaurs were the main villains in the movie “ Dinosaur Walks 3D ”.
Notes
- ↑ Hawn D. Tyrannosaurus Chronicles: Biology and Evolution of the World’s Most Famous Predator = The Tyrannosaur Chronicles: The Biology of the Tyrant Dinosaurs: orig. ed. 2016: [per. from English ] / scientific. ed. A. Averyanov . - M .: Alpina non-fiction , 2017 .-- S. 69 .-- 358 p. : ill. - ISBN 978-5-91671-744-0 .
- ↑ Gorgosaurus (English) information on the Paleobiology Database website. (Retrieved June 29, 2019) .
- ↑ Gorgosaurus libratus (English) information on the Paleobiology Database website. (Retrieved June 29, 2019) .