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Description
†Tyrannosaurus rex (Osborn, 1905)

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BRITISH MUSEUM OF NATURAL HISTORY R7994/AMERICAN MUSEUM OF NATURAL HISTORY 5866/NATURAL HISTORY MUSEUM; UNITED KINGDOM/LONDON R7994: Discovered in the Lance Formation by Barnum Brown in 1900, this Tyrannosaurus rex specimen has no special nickname; HOWEVER, when Henry Fairfield Osborn described Tyrannosaurus rex he also named a second gen. et sp. nov which he called: "Dynamosaurus imperiosus". Tyrannosaurus was described a few pages earlier than Dynamosaurus so when the two were synonymized, Tyrannosaurus took priority. "Dynamosaurus" was catalogued at the AMNH as AMNH 5866 and consisted of a dentary, cervical vertebrae, and osteoderms that belonged to an Ankylosaur, not a Tyrannosaur; but were assigned to "Dynamosaurus". The holotype of "Dynamosaurus" was sold to the Museum of Natural History; London in 1960, and is catalogued there as BMNH R7994. It makes up a cast with parts of AMNH 5027 and CM 9380. This Tyrannosaurus is around 11.98m long and 7,500-9,000 kilograms.

ROYAL TYRRELL MUSEUM OF PALEONTOLOGY 81.6.1: Known simply as "Black Beauty". "Her" name stems from the black, shiny colour of her bones because of the processes of her fossilization. "She" is the smallest adult T. rex known. "She" was discovered by Jeff Baker in 1980 in the Crowsnest Pass region in Alberta, on a fishing trip with his friend. A large fossil bone was spotted by the men and when they told their teacher he contacted the RTMP and it was excavated in 1932. "Black Beauty" is around 10.5m long and 5,500 kilograms.

skeletal: icongetawaytrike

Description
†Tyrannosaurus rex (Osborn, 1905)

(Top)

BRITISH MUSEUM OF NATURAL HISTORY R7994/AMERICAN MUSEUM OF NATURAL HISTORY 5866/NATURAL HISTORY MUSEUM; UNITED KINGDOM/LONDON R7994: Discovered in the Lance Formation by Barnum Brown in 1900, this Tyrannosaurus rex specimen has no special nickname; HOWEVER, when Henry Fairfield Osborn described Tyrannosaurus rex he also named a second gen. et sp. nov which he called: "Dynamosaurus imperiosus". Tyrannosaurus was described a few pages earlier than Dynamosaurus so when the two were synonymized, Tyrannosaurus took priority. "Dynamosaurus" was catalogued at the AMNH as AMNH 5866 and consisted of a dentary, cervical vertebrae, and osteoderms that belonged to an Ankylosaur, not a Tyrannosaur; but were assigned to "Dynamosaurus". The holotype of "Dynamosaurus" was sold to the Museum of Natural History; London in 1960, and is catalogued there as BMNH R7994. It makes up a cast with parts of AMNH 5027 and CM 9380. This Tyrannosaurus is around 11.98m long and 7,500-9,000 kilograms.

ROYAL TYRRELL MUSEUM OF PALEONTOLOGY 81.6.1: Known simply as "Black Beauty". "Her" name stems from the black, shiny colour of her bones because of the processes of her fossilization. "She" is the smallest adult T. rex known. "She" was discovered by Jeff Baker in 1980 in the Crowsnest Pass region in Alberta, on a fishing trip with his friend. A large fossil bone was spotted by the men and when they told their teacher he contacted the RTMP and it was excavated in 1932. "Black Beauty" is around 10.5m long and 5,500 kilograms.

skeletal: icongetawaytrike