Sauroposeidon
The press release in 1999 immediately garnered international media attention, which led to many (inaccurate) news reports of "the largest dinosaur ever!". While "Sauroposeidon" likely represents the tallest known dinosaur taxon, it does not hold records for either the longest or most massive. "Patagotitan" or "Argentinosaurus" make better candidates for the title "World's Largest Dinosaur" (presuming to ignore, as is conventional, "Amphicoelias"), though incomplete fossil evidence makes exact rankings impossible.
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.