File:Qantassaurus comparison.jpg

English: Dentition of Qantassaurus intrepidus Rich and Vickers-Rich, 1999 and comparisons: (1, 2) schematics of dentary occlusal margin profiles in medial view of Q. intrepidus (NMV P199075) (1) and Owenodon hoggii Owen, 1874 (NHMUK R2998, holotype) (2); (3, 4) holotypic left dentition of Q. intrepidus (NMV P199075) in lingual (3) and labial (4) views (images courtesy of Museums Victoria); (5, 6) schematics showing lingual ornamentation of unworn left dentary tooth d5.1 in Q. intrepidus (NMV P199075) (5) and unworn isolated left dentary tooth (NMV P177934) from the Eumeralla Formation referred to Atlascopcosaurus loadsi Rich and Rich, 1989 (6) (Rich and Vickers-Rich, 1989, fig. 11B); (7, 8) unworn left dentary tooth (NMV P186426) from the Eumeralla Formation in lingual (7) and labial (8) views; (9–11) right worn dentary tooth of Kangnasaurus coetzeei Haughton, 1915 (SAM-PK-2732; reversed) showing schematic of lingual ornamentation (9) (from image courtesy of K. Poole) and labial (10) and distal (11) views of cast (NMV P197995). Lines in (1, 2) indicate tooth row length and depth. 1abr = primary apicobasal ridge; 2abr = secondary apicobasal ridge; abr = apicobasal ridge; cft = cleft; cv = cingular vertex; cvr = convergent (secondary) ridge; d# = dentary tooth position (from anterior end) and replacement number; dbr = distal bounding ridge; gch = growth channel; ldc = lingulate denticle; mbr = mesial bounding ridge; ocf = occlusal facet. Scale bars: 10 mm (1–2, 9–11); 5 mm (3–8).