Fig. 1 in New psittacosaurid highlights skull enlargement in horned dinosaurs

Fig. 1. Skull of Psittacosaurus major sp. nov., LHPV 1, Near Beipiao City, Liaoning Province, China, lower portion of the Lower Cretaceous Yixian Formation, in lateral (A) and dorsal (B) views. A1 and B1, photographs; A2 and B2, explanatory drawings of the same. In A2 and B2 the cross−hatching indicates the broken bone and the tone the matrix.