Figure 1 in Cephalic salt gland evolution in Mesozoic pelagic crocodylomorphs

Figure 1. Internal rostral anatomy of extant crocodylians showing the nasal cavity and paranasal sinus system. Abbreviations are provided in the text (see Anatomical Abbreviations). Internal reconstruction colours: nasal cavity, yellow; nasopharyngeal ducts, pale yellow; antorbital cavity/sinus, green; maxillary sinus, violet; maxillary cecal recess, orange; postvestibular sinus, blue. A, B, GaƲialis gangeticus adult [UF-herp-118998 (A)] and subadult [TMM M-5490 (B)] in dorsal view with skull rendered transparent. C, D, Tomistoma schlegelii adult [USNM 211322 (C)] and subadult [TMM M-6342 (D)] in dorsal view with skull rendered transparent. E, Crocodylus rhombifer (MNB AB50.0171) in dorsal view with skull rendered transparent. F-K, transverse CT slices of nasal cavities of adult GaƲialis (F, G), subadult Tomistoma (H, I) and Crocodylus rhombifer (J, K) showing the concavities where the nasal glands and ophthalmic divisions of the trigeminal nerves are located (F, H, J) and the olfactory region of the nasal cavity (G, I, K). All skulls are rendered transparent. Scale bars equal 50 mm (A-E) and 10 mm (F-K).