English: Figure 29: Middle caudal vertebral profiles for selected ornithopods in left lateral view. A–G: (A) Diluvicursor pickeringi gen. et sp. nov. holotype (NMV P221080), ∼Ca 14; (B) NMV P185992/NMV P185993, ∼Ca 14; (C) Gasparinisaura cincosaltensis, anterior-most posterior caudal (MUCPv-212, Coria & Salgado, 1996, fig. 4); (D) Valdosaurus canaliculatus, Ca 16 (Barrett, 2016, noting Ca 14 is transitional); (E) Hypsilophodon foxii, ∼Ca 13 (MNHUK R196, based on Hulke, 1882, pl. 74, fig. 13; following vertebral positions reported in Galton, 1974, figs. 28–29); (F) Haya griva, Ca 13 (following Makovicky et al., 2011, fig. 3, noting that caudal ribs persist along the entire vertebral series); (G) Thescelosaurus sp., Ca 13 (Sternberg, 1940, fig. 17). (H) Haemal process profile in NMV P186047, ∼Ca 14. Vertebral scales normalised for centrum length (‘f’) at Ca 14 on NMV P221080, with distances ‘a’ and ‘e’ based on the same vertebra, where ‘a’ equals neural arch height and ‘e’ equals vertebral height from the neurocentral suture to the ventral tip of the haemal process (i.e. ‘a’ plus ‘e’ equals total vertebral height, ‘c;’ Fig. 13). Abbreviations: cen, centrum; ha, haemal arch/process; ncs, neurocentral suture; sp, spinal process; tp, transverse process. Scale bars equal 10 mm.