Figure 7. Body plan evolution within Ornithischia and character states with phylogenetic importance for the present hypothesis. A in Taxonomic, palaeobiological and evolutionary implications of a phylogenetic hypothesis for Ornithischia (Archosauria: Dinosauria)

Figure 7. Body plan evolution within Ornithischia and character states with phylogenetic importance for the present hypothesis. A, skeletal reconstruction of Silesaurus opolensis, a parapredentatan (stem lineage) ornithischian (after Dzik, 2003). B, skeletal reconstruction of Laquintasaura venezuelae, a parapredentatan ornithischian (after Barrett et al., 2014). C, skeletal reconstruction of Eocursor parvus, a prionodontian ornithischian (after Butler et al., 2010). D, left dentary of Kwanasaurus williamparkeri (DMNH EPV.63136) in lateral view (modified from Martz & Small, 2019). E, left ectopterygoid of Asilisaurus kongwe (NMT RB159) in posterior (modified from Nesbitt et al., 2019). F, posterior portion of the right hemimandible of Asilisaurus kongwe (NMT RB159) in lateral (modified from Nesbitt et al., 2019). G, partial left dentary of Asilisaurus kongwe (NMT RB159) in occlusal view (modified from Nesbitt et al., 2019). H, left dentary of Kwanasaurus williamparkeri (DMNH EPV.63136) in medial view (modified from Martz & Small, 2019). I, isolated tooth of Kwanasaurus williamparkeri (DMNH EPV.63843) in labial view (modified from Martz & Small, 2019). J, proximal portion of the right femur of Sacisaurus agudoensis (MCN PV100014) in caudomedial view. K, right maxilla of Echinodon becklesii (NHMUK OR48211) in lateral view (modified from Sereno, 2012). L, right tibia of Eocursor parvus (SAM-PK-K8025) in proximal view. M, left pelvic elements of Heterodontosaurus tucki (SAM-PK-K1332) in lateral view. N, skull of Heterodontosaurus tucki (SAM-PK-K1332) in right lateral view. O, cervical 6 and 7 of Heterodontosaurus tucki (SAM-PK-K1332) in left lateral view. P, proximal portion of the right tibia of Eocursor parvus (SAM-PK-K8025) in lateral view. Q, left ischium of Lesothosaurus diagnosticus (SAM-PK-K1105) in medial view (modified from Baron et al., 2017a). R, proximal portion of the left femur of Lesothosaurus diagnosticus (BP/1/6582) in lateral view. Elements are not to scale.