A–T, Right quadrate (unless indicated) in ventral view in; A, Allosaurus ‘jimmadseni’ (SMA 05/002); B, Aerosteon riocoloradensis (MCNA-PV-3137; left reversed; courtesy of Martin Ezcurra); C, Acrocanthosaurus atokensis (NCSM 14345); D, Giganotosaurus carolinii (MUCPv-CH-1; left reversed); E, Guanlong wucaii (IVPP V14531; left reversed; courtesy of Oliver Rauhut); F, Eotyrannus lengi (MIWG 1997.550); G, Qianzhousaurus sinensis (GM F10004-1; left reversed; courtesy of Stephen Brusatte); H, Tyrannosaurus rex (BHI l013; modified from Larson [133]); I, Bicentenaria argentina (MPCA 865; left reversed); J, Ornitholestes hermanni (AMNH FARB 619); K, Shuvuuia deserti (IGM 100–1001; left reversed); L, Gallimimus bullatus (IGM 100–1133; left reversed); M, Falcarius utahensis (UMNH VP 14559; left reversed; courtesy of Lindsay Zanno); N, Avimimus portentosus (cast of PIN 3907–3; left reversed; courtesy of Lawrence Witmer); O, Indeterminate Oviraptoridae (?Ajancingenia yanshini or? Conchoraptor gracilis; IGM A; left reversed; [85]); P, Citipati osmolskae (IGM 100–978); Q, Indeterminate Oviraptoridae (?Saurornithoides mongoliensis; IGM 100–1083; [134], modified); R, Dromaeosaurus albertensis (AMNH FARB 5356); S, Bambiraptor feinbergi (AMNH FARB 30556; left reversed); T, Tsaagan mangas (IGM 100–1015; [135]; courtesy of Mick Ellison). Taxa framed in blue are those belonging to morphoclade II retrieved in the phylogenetic morphometric analysis (Fig 8A). Quadrates not to scale.