Fig. 7 in Comparative cranial osteology of subadult eucentrosauran ceratopsid dinosaurs from the Two Medicine Formation, Montana, indicates sequence of ornamentation development and complex supraorbital ontogenetic change

Fig. 7. Ontogenetic series of supraorbital ornamentation of Einiosaurus procurvicornis Sampson, 1995 from the Campanian Canyon Bonebed (TM-046), Montana, USA. A, B. Juvenile, MOR 456 8-10-87-20 (A) and MOR 456 8-8-87-19 (B). C, D. Early subadult, MOR 456 8-9-7-3 (C) and MOR 456 2020- C-1 (D). E, F. Late subadult, MOR 456 8-8-87-1 (E) and MOR 456 8-23-87 (F). G, H. Young adult, MOR 456 2020-C-2 (G) and MOR 456 8-9-6-1 (H). B, D–G are mirrored. All specimens in lateral view, anterior is to the left in all images.