. Bulletin of the British Museum (Natural History), Geology. 1mm. 05 mm Fig. 23. Humbertia operta gen. & sp. nov. a,b, two isolated left premaxillae, , in internal (above) and external view, c, head of isolated right maxilla, , in external (above) and internal view. All from Hajula, Lebanon. Explanation of abbreviations p. 296. The two supramaxillae (Sma, Smp, Figs. 20, 21) are essentially as in Gaudryella, except that the body of the posterior supramaxilla is shorter and deeper (cf. Figs. 5, 6, 9). As in Gaudryella, the supramaxillae were mobile, being displaced in fossils
. Bulletin of the British Museum (Natural History), Geology. 1mm. 05 mm Fig. 23. Humbertia operta gen. & sp. nov. a,b, two isolated left premaxillae, , in internal (above) and external view, c, head of isolated right maxilla, , in external (above) and internal view. All from Hajula, Lebanon. Explanation of abbreviations p. 296. The two supramaxillae (Sma, Smp, Figs. 20, 21) are essentially as in Gaudryella, except that the body of the posterior supramaxilla is shorter and deeper (cf. Figs. 5, 6, 9). As in Gaudryella, the supramaxillae were mobile, being displaced in fossils with the mouth open. (vi) Lower jaw. The mandible is similar in shape to that of Gaudryella, with the same short, steeply ascending oral border, and long, high coronoid process. The dentary (Den, Figs. 19-21, 22A, 24, 25) differs from that of Gaudryella in having a shallower symphysis, without serrations, and a slightly less steeply ascending oral border which bears six to eight small, recurved teeth close to the symphysis followed. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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