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Fig. 33 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 33. Coronal CT image showing the contact between the maxilloturbinal and nasoturbinal (char. 4.1) in Petauroides volans, C385 (AMNH 150055). The plesiomorphic condition for marsupials is the lack of contact between these two elements (char. 4.0). Scale bar equals 5 mm. Abbreviations: ONS, ossified nasal septum; P2, second upper premolar.
Fig. 31 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 31. Coronal CT images showing the morphology of the caudalmost portion of nasal cavity (i.e., sphenoidal recess; char. 35). (A) lateral restriction of sphenoidal recess by the endocranial cavity is absent (char. 35.0), Trichosurus vulpecula, C319 (TMM M-849); (B) lateral restriction of sphenoidal recess by the endocranial cavity is present (char. 35.1), Notoryctes typhlops, C443 (AMNH 202107). Both scale bars equal 5 mm. Abbreviations: Endo, endoturbinal; ONS, ossified nasal septum; SOR, sphenoidal recess; V2, maxillary branch of trigeminal nerve.
Fig. 30 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 30. Coronal CT image showing the contribution of posterior transverse lamina to the cribriform plate (char. state 33.1) shown in Notoryctes typhlops, C387 (AMNH 202107). Scale bar equals 1 mm. Abbreviations: Endo, endoturbinal; ONS, ossified nasal septum; PTL, posterior transverse lamina; SER, sphenethmoid recess.
Fig. 15 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 15. Coronal CT images showing the caudalmost point of ventral attachment of caudal nasoturbinal (char. 12). (A) nasoturbinal attaches to medial wall of lacrimal canal (char. 12.0), Isoodon macrourus, C374 (TMM M-6922); (B) nasoturbinal attaches to lateral wall of nasal cavity (char. 12.1), Trichosurus vulpecula, C212 (TMM M-849); (C) nasoturbinal attaches to medial wall of infraorbital canal (char. 12.2), Dasyurus hallucatus, C286 (TMM M-6921); (D) nasoturbinal attaches to floor of nasal cavity (char. 12.3), Caenolestes fuliginosus, C408 (KU 124015); (E) nasoturbinal attaches to the maxilloturbinal (char. 12.4), Petauroides volans, C450 (AMNH 150055). All scale bars equal 5 mm. Abbreviations: Ecto, ectoturbinal; Endo, endoturbinal; ONS, ossified nasal septum; PTL, posterior transverse lamina.
Fig. 26 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 26. Coronal CT images showing the presence or absence of a maxillary recess (char. 25). (A) recess is present (char. 25.0), Dasyurus hallucatus, C330 (TMM M-6921), scale bar equals 5 mm; (B) recess is absent (char. 25.1), Dromiciops gliroides, C230 (FMNH 127463), scale bar equals 1 mm. Abbreviations: Ecto, ectoturbinal; Endo, endoturbinal; ONS, ossified nasal septum; NPM, nasopharyngeal meatus; PTL, posterior transverse lamina; SER, sphenethmoid recess.
Fig. 3 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 3. Skull of Didelphis virginiana (TMM M-2517) shown in (A) dorsal, and (B) left lateral views. Scale bar equals 1 cm.
Fig. 14 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 14. Coronal CT images showing the presence or absence of an uncinate process of the nasoturbinal (char. 11). (A) uncinate process present (char. 11.0), Myrmecobius fasciatus, C270 (AMNH 155328); (B) uncinate process absent (char. 11.1), Echymipera kalubu, C435 (AMNH 190970). Both scale bars equal 5 mm. Abbreviations: Ecto, ectoturbinal; Endo, endoturbinal; ONS, ossified nasal septum; PTL, posterior transverse lamina.
Fig. 22 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 22. Coronal CT images showing the morphology of the rostral portion of ventralmost ectoturbinal (char. 22). (A) lamella does not contact posterior transverse lamina (char. 22.0), Dromiciops gliroides, C245 (FMNH 127463); (B) lamella is attached to posterior transverse lamina (char. 22.1), Macrotis lagotis, C485 (AMNH 74486). Both scale bars equal 5 mm. Abbreviations: Ecto, ectoturbinal; Endo, endoturbinal; M1, first upper molar; ONS, ossified nasal septum; SER, sphenethmoid recess.
Fig. 29 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 29. Coronal CT images showing the rostral extent of ossified nasal septum (char. 29). (A) ossified nasal septum extends rostral to crowns of upper canines (char. 29.0), Caenolestes fuliginosus, C136 (KU 124015), scale bar equals 1 mm; (B) septum rostral extent is even with crowns of upper canines (char. 29.1), Dromiciops gliroides, C112 (FMNH 127463), scale bar equals 1 mm; (C) septum rostral extent is caudal to crowns of upper canines (char. 29.2), Phalanger orientalis, C066 (AMNH 157211), scale bar equals 5 mm. Abbreviations: C, upper canine; Ccr, upper canine crown; ONS, ossified nasal septum.
Fig. 7 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 7. Digital rendering of the isolated right maxilloturbinal from Didelphis virginiana (TMM M-2517) shown in (A) lateral, (B) medial, (C) rostral, and (D) caudal views. Labels indicate caudal and rostral ends of the maxilloturbinal for the lateral and medial views. Scale bar equals 1 cm.
Fig. 11 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 11. Coronal CT images showing the morphology of the rostral portion of the caudal nasoturbinal (char. 9). (A) rostrodorsal and rostroventral portions are straight (without a kink; char. 9.0), Didelphis virginiana, C270 (TMM M-2517); (B) distinctive kink between rostrodorsal and rostroventral portions of caudal nasoturbinal (char. 9.1), Dasyurus hallucatus, C208 (TMM M-6921). Both scale bars equal 5 mm. Abbreviations: Endo, endoturbinal; ONS, ossified nasal septum.
Fig. 18 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 18. Coronal CT images showing variation in the number of endoturbinals (char. 18). (A) two endoturbinals present (ch. 18.0), Ornithorhynchus anatinus, C274 (AMNH 200255), scale bar equals 5 mm; (B) three endoturbinals present (char. 18.1), Tarsipes rostratus, C449 (AMNH 119717), scale bar equals 1 mm; (C) four endoturbinals present (char. 18.2), Dendrolagus lumholtzi, C296 (AMNH 65254), scale bar equals 5 mm; (D) five endoturbinals present (char. 18.3), Didelphis virginiana, C464 (TMM M-2517), scale
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.
Fig. 21 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 21. Coronal CT images showing variation in the number of ectoturbinals (char. 19). (A) one ectoturbinal is present (char. 19.0), Tarsipes rostratus, C449 (AMNH 119717), scale bar equals 1 mm; (B) two ectoturbinals (char. 19.1), Didelphis virginiana, C464 (TMM M-2517), scale bar equals 5 mm; (C) three ectoturbinals (char. 19.2), Wallabia bicolor, C430 (TMM M-4169), scale bar equals 5 mm; (D) four ectoturbinals (char. 19.3) Potorous tridactylus, C495 (AMNH 65337), scale bar equals 5 mm. Abbreviations: Ecto, ectoturbinal; Endo, endoturbinal; NPM, nasopharyngeal meatus; ONS, ossified nasal septum; SER, sphenethmoid recess.
Fig. 2 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 2. Modified strict consensus tree from Sánchez-Villagra et al. (2007) based on morphological data. Taxa for which I do not have nasal cavity data were pruned from the topology or if possible substituted for closely related species for which I do have nasal cavity data. Wallabia was substituted for Macropus; Sarcophilus was substituted for Dasyuroides; Isoodon was substituted for Perameles. Substitutions within Marsupialia were based on the topologies by Cardillo et al. (2004). For explanation of outgroups used, see caption for figure 1.
Fig. 6 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 6. Coronal CT images showing the packing of endo- and ectoturbinals (char. 14). (A) turbinals are relatively loosely packed (char. 14.0), Caluromys philander, C330 (AMNH 95526); (B) turbinals are complexly branching or convoluted elements that are densely packed creating a tight mazelike pattern, especially around the ossified nasal septum (char. 14.1), Potorous tridactylus, C440 (AMNH 65337). Both scale bars equal 5 mm. Abbreviations: Ecto, ectoturbinal; Endo, endoturbinal; NPM, nasopharyngeal meatus; ONS, ossified nasal septum; PTL, posterior transverse lamina; SER, sphenethmoid recess.
Fig. 20 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 20. Coronal CT images showing the number of turbinal folds on endoturbinal I (char. 15). (A) one (ch. 15.1), Monodelphis domestica, C205 (TMM M-7599); (B) two (char. 15.2), Didelphis virginiana, C464 (TMM M-2517). All scale bars equal 5 mm. Abbreviations: Ecto, ectoturbinal; Endo, endoturbinal; NPM, nasopharyngeal meatus; ONS, ossified nasal septum; PTL, posterior transverse lamina; SER, sphenethmoid recess.
Fig. 19 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 19. Coronal CT images showing pneumaticity of the rostral portion of endoturbinal I (char. 17). (A) rostral portion contains no pneumatic cavities (char. 17.0), Petauroides volans, C370 (AMNH 150055); (B) small pneumatic cavity is present, which encompasses only a portion of the coronal cross section of the element (char. 17.1), Phalanger orientalis, C160 (AMNH 157211); (C) large cavity is present, which encompasses most or the entire coronal cross section of the element (char. 17.2), Didelphis virginiana, C270 (TMM M-2517). All scale bars equal 5 mm. Abbreviations: Endo, endoturbinal; ONS, ossified nasal septum; P1, first upper premolar.
Fig. 4 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 4. Digital rendering of the ethmoid bones (shown in color) inside the semitransparent skull of Didelphis virginiana (TMM M-2517) shown in (A) dorsal, and (B) left lateral views. Scale bar equals 1 cm.
Fig. 1 in Comparative Morphology Of The Internal Nasal Skeleton Of Adult Marsupials Based On X-Ray Computed Tomography
Fig. 1. Modified topology from Meredith et al. (2009) based on Bayesian analysis of five nuclear genes. Taxa for which I do not have nasal cavity data were pruned from the topology or if possible substituted for closely related species for which I do have nasal cavity data. Didelphis was used as a representative of Didelphinae; Dendrolagus was substituted for Aepyprymnus; Wallabia was substituted for Macropus; Sminthopsis was substituted for Phascolosorex. Substitutions within Marsupialia were based on the topologies by Cardillo et al. (2004). The outgroups were pruned from the topology of Meredith et al. (2009) and instead the following taxa for which I have nasal cavity data were included: Mus, Pteropus, Erinaceus, Ornithorhynchus, and Tachyglossus. The polytomy for the placental mammals reflects the uncertainty in higher level systematics for Placentalia, whereas the monotreme relationships are well established (e.g., Rowe et al., 2008).
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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