Fig. 2

Palaeognath hyoid elements. a-b Cassowary, Casuarius casuarius, FUR180; dorsal view, A- scale bar = 10mm. c Tinamou, Nothoprocta perdicaria, NMNZ S. 22983; dorsal view, scale bar = 10mm. d Moa, Megalapteryx, NMNZ S. 400; dorso-lateral view, scale bar = 10mm. e Emu, Dromaius novaehollandiae, adapted from Parker ([36], plate XII); dorsal view. f Rhea, Rhea americana, adapted from Parker ([36], plate X); dorsal view. g Ostrich, Struthio camelus, adapted from Soley et al. ([22], fig. 3); dorsal view. Abbreviations: bh: basihyal, buh, basiurohyal, cb: ceratobranchial, epb, epibranchial, ur: urohyal. Dotted lines indicate potential paraglossal shape for the cassowary (b) and tinamou (c), derived from the hyoids of closely related species figured in Parker ([36], see plates 14 and 15)