FIG. 5 in The Late Miocene colobine monkeys from Aragai (Lukeino Formation, Tugen Hills, Kenya)

FIG. 5. — CT scans of Sawecolobus lukeinoensis n. gen., n. sp., crania: A, B, frontal and mid-sagittal scans of BAR 758'00; C, D, frontal scans of BAR 757'00, respectively; C2, D2, are expanded images of C1 and D1, respectively. The bony region has rather low CT values and is coloured in dark grey on the CT scans. The frontal and sphenoid bones are fully occupied by cancellous bone in both specimens (*). The maxillary sinus (MS) is separated by the thin bony wall (dotted line, BW) that, in part, includes cancellous bone (dotted circle) on the left side in BAR 757'00, but its trace is detected on the right. The left M3/ alveolus is excavated by the maxillary sinus in BAR 757'00 (**). Scale bars: 1 cm.