Galleonosaurus

Specimens of Galleonosaurus dorisae n. gen. n. sp. from the Flat Rocks Sandstone in the upper Barremian, Wonthaggi Formation, Gippsland Basin, southeastern Australia: (1–2) holotype (NMV P229196), left maxilla in lateral (1) and medial (2) views; (3) NMV P208178, left maxilla in lateral view; (4) NMV P212845, left maxilla in lateral view; (5) NMV P209977, left maxilla in lateral view; (6) NMV P186440, left maxilla in lateral view; (7) NMV 208113, right maxillary tooth in labial view. Scale bars = 10 mm (1–6); 1 mm (7).

Comparisons of Victorian ornithopod maxillae in lateral view and schematics, showing dorsalmost extent of the maxillary ramus (indicated by large arrows): (1) Galleonosaurus dorisae n. gen. n sp., holotypic left maxilla (NMV P229196); (2) Atlascopcosaurus loadsi Rich and Rich, 1989, left maxilla (NMV P157390); (3) cast of original holotypic left maxilla of Atlascopcosaurus loadsi (NMV P166409). alv = alveolus; bur = buccal ridge; lpf = lateral palatine flange of maxilla; m#’ = maxillary tooth position (from posterior end) and replacement number; ml = medial lamina of maxilla; mra = maxillary ramus; nvt = neurovascular tract; plp = posterolateral process of maxilla; pmp = posteromedial process of maxilla; sal = supralveolar lamina of maxilla. Scale bars = 10 mm.