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Illustrations

Species list

  • G. libratus (Lambe, 1914) type species

    • Name : Gorgosaurus Species : libratus
    Pronounced : GOR-go-SAW-rus Pronounced : li-BRAH-tus
    Meaning : "fierce lizard" Meaning : "free"
    Length :
    8.6 meters (28 feet)     		Height at hips :
    2.3 meters (9.3 feet)     		Weight :
    2.5 tons
    Diet : carnivor = meat eater Period : Upper Cretaceous
    Superorder :
    Dinosauria     		Order :
    Saurischia     		Suborder :
    Theropoda     		Family :
    Tyrannosauridae
    Discovered by:
    C. H. Sternberg     		When Discovered:
    1913     		Described by:
    Lawrence Lambe     		When Described:
    1914
    Fossils found in : (Morrison Formation) Colorado, Wyoming, Utah and Montana
    Charactistics and things of interest:
    Dr. Thomas Holtz says "Anytime you see a skeleton or picture of "Albertosaurus" libratus, it is really Gorgosaurus libratus. On the very, very rare occasion (outside of Canada) that you see a skeleton or picture of Albertosaurus sarcophagus (or A. arcunguis, if it is indeed different), it is really Albertosaurus."
    Similar to: Albertosaurus Debate and Controversy: A major study of the family Tyrannosauridae done in the 70's concluded that Albertosaurus and Gorgosaurus were the same genus.
    Recent research by The Royal Tyrrell Museum shows that Albertosaurus and Gorgosaurus really do represent different genera.

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    Last Updated on 01/01/2008

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