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".
Carnegie Museum of Natural History
The museum gained prominence in 1899 when its scientists unearthed the fossils of "Diplodocus carnegii". Today its dinosaur collection includes the world's largest collection of Jurassic dinosaurs and its "Dinosaurs in Their Time" exhibition offers the third largest collection of mounted, displayed dinosaurs in the United States (behind the Smithsonian's National Museum of Natural History and the American Museum of Natural History). Notable specimens include one of the world's only fossils of a juvenile "Apatosaurus", the world's first specimen of a "Tyrannosaurus rex", and a recently identified species of oviraptorosaur named "Anzu wyliei".