Fig. 25 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography

Fig. 25. Coronal CT images showing the presence or absence of a frontal sinus (character 27). (A) no frontal sinus is present (char. 27.0), Dasyurus hallucatus, C428 (TMM M-6921); (B) small frontal sinus is present that comprises less than half of the cross sectional area of the frontals (char. 27.1), Phalanger orientalis, C342 (AMNH 157211); (C) large frontal sinuses present that comprises most or all of the cross sectional area of the frontals (char. 27.2), Dendrolagus lumholtzi, C329 (AMNH 65254). All scale bars equal 5 mm. Abbreviations: Endo, endoturbinal; ONS, ossified nasal septum; SOR, sphenoidal recess.