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".
William May (artistic director)
He chose Sonny Tilders, one of the film and television industries' leading professionals in the field of animatronic puppetry, to head the development of the dinosaurs. May designed the fifteen life-size dinosaurs used in the production. Ten species of dinosaurs are included in the show, including the Liliensternus, Plateosaurus, Allosaurus, Stegosaurus, Utahraptor and Torosaurus. The largest dinosaur in the production, the Brachiosaurus, which most resembles the cranes which inspired the show, measures 56 feet long and 36 feet tall.