The Osteology of the Basal Archosauromorph Tasmaniosaurus triassicus from the Lower Triassic of Tasmania, Australia
Figure 4
Tooth bearing-bones of type specimen (UTGD 54655) of Tasmaniosaurus triassicus.
A, right premaxilla in lateral view and B, close up of the last two premaxillary teeth in labial view; C, left maxilla in probable and D, partial right maxilla in medial views; and E, partial right pterygoid and F, close up of T4 row of palatal teeth of pterygoid in medial views. Abbreviations: ?ms, possible medial shelf; abaf, anterior border of the antorbital fenestra; anp, anterior process; ap, ascending process; ati, ankylothecodont tooth implantation; dd, distal denticles; dpo, displaced portion; ea, empty alveolous; hp, horizontal process; ms, medial shelf; nm, natural mould; pb, premaxillary body; pp, posterior process; pt, premaxillary tooth; t, tooth. Scale bars equal 5 mm (A, D), 1 mm (B, F), 1 cm (C), and 2 mm (E).