Dinosaur size
There were larger dinosaurs, but knowledge of them is based entirely on a small number of fragmentary fossils. Most of the largest herbivorous specimens on record were discovered in the 1970s or later, and include the massive titanosaur "Argentinosaurus huinculensis", which is the largest dinosaur known from uncontroversial evidence, estimated to have been and long. Some of the longest sauropods were those with exceptionally long, whip-like tails, such as the "Diplodocus hallorum" (formerly "Seismosaurus") and the 33- to 35-metre-long (108–115 ft) "Supersaurus". The tallest was the "Brachiosaurus".
Museum of the Rockies
Apart from housing one of the largest collections of dinosaur fossils in the world and the largest in the United States, the museum is also home to one of the world's largest "Tyrannosaurus" skulls (MOR 008) – narrowly surpassing that of the Chicago Field Museum's specimen, Sue. The museum's Siebel Dinosaur Complex, designed by curator Horner, is home to one of the first identified female dinosaurs, an ovulating "T. rex". Curator Horner, who served as an adviser to the "Jurassic Park" films, was one of the lead scientists involved in the 2005 discovery of soft tissue remains in the thigh bone of a "Tyrannosaurus", which were later brought to the museum. The museum has also been involved in a number of other finds, including a baby "Triceratops" in Jordan, Montana, in 2006, and "Yoshi's Trike" (MOR 3027), a large "Triceratops" specimen with 125 cm long horns, discovered in 2010.