Joseph Burr Tyrrell, FRSC was a Canadian geologist, cartographer, mining consultant and historian. He discovered dinosaur (Albertosaurus sarcophagus) bones in Alberta's Badlands and coal around Drumheller in 1884. Canada's Royal Tyrrell Museum of Palaeontology in Alberta was named in his honour.
The holotype specimen of Albertosaurus discovered by Tyrrell
Bust of Tyrrell at the Royal Tyrrell Museum of Palaeontology
Albertosaurus is a genus of large tyrannosaurid theropod dinosaur that lived in northwestern North America during the early to middle Maastrichtian age of the Late Cretaceous period, about 71 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, although an indeterminate species has been discovered in the Corral de Enmedio and Packard Formations of Mexico. Scientists disagree on the content of the genus and some recognize Gorgosaurus libratus as a second species.
Albertosaurus
Holotype specimen CMN 5600
The Red Deer River near Drumheller, Alberta. Almost three-quarters of all Albertosaurus remains have been discovered alongside the river, in outcrops like the ones on either side of this picture.
Teeth from Dry Island and Drumheller, Royal Tyrrell Museum
