Tyrannosaurus Under Construction Sculptor Louis Paul Jonas sits about 18 feet off the floor of his Hudson, New York studio shaping the nose of the fiberglass replica of the tyrannosaurus. The huge model is one of nine mounted aboard tractor-trailer trucks for the 18-state dinosaur tour. Lifesize replicas were fashioned after smaller models. Part of the ankylosaurus is seen at left. Jonas' studio was built specially for the Sinclair Exhibit.