Dinosauria (Seeley, 1888)

Norman, David B, Baron, Matthew G, Garcia, Mauricio S & Müller, Rodrigo Temp, 2022, Taxonomic, palaeobiological and evolutionary implications of a phylogenetic hypothesis for Ornithischia (Archosauria: Dinosauria), Zoological Journal of the Linnean Society 196 (4), pp. 1273-1309 : 1285

Dinosauria ( Fig. 6 : node 1)

Definition adopted: The least inclusive clade containing Iguanodon bernissartensis , Megalosaurus bucklandii and Cetiosaurus oxoniensis Phillips, 1871 ( Langer et al., 2020).

Characters in support (here): Basipterygoid process mediolaterally compressed (Char. 62: 0 → 1); post-glenoid process of the coracoid extending caudal to glenoid (Char. 140: 0 → 1); presence of a strong pillar caudal to the pre-acetabular embayment of the ilium (Char. 180: 0 → 1); pubis length more than 70% or more of femoral length (Char. 188: 0 → 1); more dorsally extensive contact between the medial surface of the ischia (Char. 197: 0 → 1); presence of a dorsolateral sulcus on the ischium (Char. 198: 0 → 1); rounded or elliptical outline of the distal portion of the ischium (Char. 199: 0 → 1); kinked transition from the femoral shaft to the femoral head (Char. 208: 0 → 1); angled ‘greater trochanter’ of the femur (Char. 216: 0 → 1); presence of a transverse groove on the proximal surface of the femur (Char. 217: 0 → 1); concave caudal margin of the distal end of the tibia (Char. 240: 0 → 1); and metatarsal IV subequal or shorter than metatarsal II (Char. 217: 0 → 1).

Figures

Figure 6. Strict consensus treefrom the unconstrained analysis depicting nodenumbers mentioned in thetext and bootstrap values equal to or higher than 40%. Node numbers: 1, Dinosauria; 2, Saurischia; 3, Ornithischia; 4, Sulcimentisauria; 5, Parapredentata; 6, Unnamed; 7, Prionodontia; 8, Thyreophora; 9, Neornithischia; 10, Heterodontosauridae. Saltopus elginensis was removed from the strict consensus tree after an iterPCR analysis (Pol & Escapa, 2009). Silhouettes based on the artwork by Márcio L. Castro, Gabriel Lio, Rodrigo T. Müller, Maurício S. Garcia and John Sibbick.