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Tyrannosaurus Rex and Its Kin: The Mesozoic Monsters
Tyrannosaurus Rex and Its Kin The Mesozoic Monsters Author:Helen Roney Sattler Discusses the fossil remains, probable appearance, and possible behavior of the gigantic flesh-eating dinosaurs of the Mesozoic, including Tyrannosaurus rex, Allosaurus, and such lesser known relatives as Acrocanthosaurus and Baryonyx walkeri.