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. 2016 Oct 12;2(10):e1601329. doi: 10.1126/sciadv.1601329

Fig. 3. CT slices along the anteroposterior axis of Obdurodon and Ornithorhynchus skulls at the tooth or horny pad position (see Fig. 1).

Fig. 3

(A and B) Ob. dicksoni (from Digimorph; Queensland Museum F20568). (C) Or. anatinus (YAMA M-1). (D) Or. anatinus (from Digimorph; American Museum of Natural History M200255).