a meat-eating albertosaurine theropod dinosaur from the Late Cretaceous of Canada.
Update in progress...
(Balanced fierce lizard)Etymology
is derived from the Greek "gorgos" (fierce, terrible) and sauros" (lizard). Contrary to some sources, Gorgosaurus
wasn't named after the "Gorgons" from Greek mythology, though they were pretty fierce themselves.
The species epithet
, means "balanced" in Latin.
? (Cope, 1876)
? (Cope, (1876)
? (Cope, (1876)
? (Hay, 1899)
(Matthew & Brown, 1923)
The first remains of Gorgosaurus
were discovered in the Dinosaur Park Formation of Alberta, Canada, by Charles M. Sternberg in 1913.
(NMC 2120) is a nearly complete skeleton (the first tyrannosaurid specimen found with a complete hand) and an associated skull.
The homeland of Gorgosaurus
was a sub-tropical coastal plain along the western edge of an inland sea (the Western Interior Seaway, which cut North America in two on the vertical), with forests of huge conifers and many smaller ferns, tree ferns and angiosperms.
The up-rising Rockies unleashed great rivers resulting in vast floodplains, but periodic drought was still a problem. The area's fossil record shows massive mortality amongst herding dinosaurs, perhaps due to a lack of water, then cruelly too much of it, as the Bearpaw Sea expanded to drown the Dinosaur Park Fauna around 73 million years ago.
: Late Cretaceous
: 80-73 mya
Est. max. length
: 8.5 meters
Est. max. hip height
Est. max. weight
: 2.5 tons
• Lambe L.M. (1914) "On a new genus and species of carnivorous dinosaur from the Belly River Formation of Alberta, with a description of Stephanosaurus marginatus
from the same horizon".
• Lambe L.M. (1914) "On the fore-limb of a carnivorous dinosaur from the Belly River Formation of Alberta, and a new genus of Ceratopsia from the same horizon, with remarks on the integument of some Cretaceous herbivorous dinosaurs".
• Holtz T.R. (2004) "Tyrannosauroidea" in Weishampel, Dodson and Osmólska (eds.)
"The Dinosauria: Second Edition
• Currie P.J., Trexler D., Koppelhus E.B., Wicks K. and Murphy N. (2005) "An unusual multi-individual tyrannosaurid bonebed in the Two Medicine Formation (Late Cretaceous, Campanian) of Montana (USA)" in "The Carnivorous Dinosaurs
• Braman D.R. and Koppelhus E.B. (2005) "Campanian palynomorphs" in Currie and Koppelhus (eds.) "Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed
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