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Ceratosaurus (Dinosauria, Theropoda), a revised osteology (MP 00-2) Knots Books offer new territory for theBy: J. H. Madsen Jr. and S. P. Welles The Ceratosauria is modified to include two super families with one new subfamily. Two new species of Ceratosaurus are described, the first based on an articulated skeleton from the Fruita Paleontological Area in western Colorado, and the second on skeletal elements of a single individual from the Cleveland Lloyd Dinosaur Quarry in east central Utah. A number of additional specimens, identifiable only to genus,