Figure 20.
Comparisons of quadrates of select monstersaur taxa, in lateral view (top row) and posterior view (bottom row). (A) UMNH VP 16266.7 (holotype, Bolg amondol). (B) LACM 163582 (Heloderma horridum). (C) IGM 3/905 (referred specimen, Gobiderma pulchrum, modified from [12]). (D) IGM 3/14 (holotype, Estesia mongoliensis, modified from [5,12]). Anatomical abbreviations: alc, anterolateral crest; pc, posterior crest.
