Fig. 2: The feeding apparatus of Q. wakei.
From: A new elpistostegalian from the Late Devonian of the Canadian Arctic
Volume renderings of µCT scans of the lower jaw and extra fragments reconstructed in their natural positions. a, Dorsal view of the lower jaws, ceratohyal, gular plates, premaxilla and palate. Scale bar, 1 cm. b, Ventral view with premaxillary and palatal elements displaced so ventral surfaces are visible. c, Left lower jaw, dorsal. d, Left lower jaw, medial. e, Right lower jaw, ventral. f, Right lower jaw, lateral. Abbreviations: ac, anterior coronoid; acf, anterior coronoid fang; ch, ceratohyal; cho, choana; d, dentary; df, dentary fang; dpf, dermopalatine fang; ecf, ectopterygoid fang; g, gulars; mc, Meckel’s cartilage; mcf, Meckelian canal foramen; mx, maxilla; pa, prearticular; pc, posterior coronoid; pcf, precoronoid fossa; pmx, premaxilla; pspl, postsplenial; sbp, submandibulo-branchiostegal plate; psf, post-symphyseal flange; vf, vomerine fang.
