Text-fig. 8.—The shape of the frontals. A, the Jordan theropod, LACM 28471, B, Albertosaurus libratus, AMNH 5664, C, A. libratus, USNM 12814. All are drawn to the same length. Vertical lines to the right indicate relative lengths of the three frontals respectively. (B, courtesy of Dale A. Russell, C, redrawn from Russell, 1970). in A new Theropod Dinosaur from the Upper Cretaceous of Central Montana

Text-fig. 8.—The shape of the frontals. A, the Jordan theropod, LACM 28471, B, Albertosaurus libratus, AMNH 5664, C, A. libratus, USNM 12814. All are drawn to the same length. Vertical lines to the right indicate relative lengths of the three frontals respectively. (B, courtesy of Dale A. Russell, C, redrawn from Russell, 1970).