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Figure 12 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 12. Local and regional variation in the larger cheekteeth (upper P4 and M1) of Arctonyx collaris, depicted to scale, as figured by Pocock (1941). A, adult male, eastern India ('Bengal'). B, immature male, eastern India (Nagaland, Naga Hills). C, immature male, eastern India (Meghalaya, Jaintia Hills). D, immature male, Myanmar (Kindat area). E, old adult male, Myanmar (Mt Toungoo). F, immature female, Myanmar (Lockaw). G, immature male, Vietnam (Nhatrang). H, immature male, Myanmar (Mt Toungoo). I, immature female, Myanmar (Chin Hills). Labelled as by Pocock (1941). Based on vouchered specimens at BMNH (see Pocock, 1941).
Figure 3 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 3. Comparative molar dimensions in Arctonyx skulls. Maximum crown length versus crown width for upper M1 (zygomatic width) in 80 intact molars, excluding excessively worn teeth (A. hoevenii, triangles; A. albogularis, diamonds; A. collaris, squares). All ages pooled. Whereas the size-variable teeth of A. collaris and A. albogularis overlap broadly in their dimensions, molar dimensions for Arctonyx hoevenii show no overlap with the other two species.
Figure 8. Aetiocetus weltoni, UCMP 122900, holotype left tympanic bulla. A in Skull anatomy of the Oligocene toothed mysticete Aetioceus weltoni (Mammalia; Cetacea): implications for mysticete evolution and functional anatomy
Figure 8. Aetiocetus weltoni, UCMP 122900, holotype left tympanic bulla. A, medial view; B, lateral view; C, ventral view; D, dorsal view; E, posterior view.
Figure 6 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 6. Representative skulls of the three species of Arctonyx. A, Arctonyx hoevenii, USNM 269073, adult female from 'Atjeh', northern Sumatra. B, A. collaris, USNM 256678, adult female, from Trang, Peninsular Thailand (topotypical). C, A. albogularis, FMNH 39373, adult female, from Hsien, Fujian Province, China. Scale bar = 20 mm.
Figure 7. Aetiocetus weltoni, UCMP 122900 in Skull anatomy of the Oligocene toothed mysticete Aetioceus weltoni (Mammalia; Cetacea): implications for mysticete evolution and functional anatomy
Figure 7. Aetiocetus weltoni, UCMP 122900, sketch of right temporal wall showing configuration of cranial elements. al = alisphenoid, fo = foramen pseudovale, fr = frontal, of = orbital fissure, pal = palatine, par = parietal, pt = pterygoid, sq = squamosal.
Figure 5. Aetiocetus weltoni, UCMP 122900 in Skull anatomy of the Oligocene toothed mysticete Aetioceus weltoni (Mammalia; Cetacea): implications for mysticete evolution and functional anatomy
Figure 5. Aetiocetus weltoni, UCMP 122900, holotype; stereophotographs of portion of left palate showing location of lateral palatal foramina and sulci.
Figure 10. Aetiocetus weltoni. A in Skull anatomy of the Oligocene toothed mysticete Aetioceus weltoni (Mammalia; Cetacea): implications for mysticete evolution and functional anatomy
Figure 10. Aetiocetus weltoni. A, lateral view of reconstructed left dentary; B, medial view of reconstructed left dentary.
Figure 6. Aetiocetus weltoni, UCMP 122900 in Skull anatomy of the Oligocene toothed mysticete Aetioceus weltoni (Mammalia; Cetacea): implications for mysticete evolution and functional anatomy
Figure 6. Aetiocetus weltoni, UCMP 122900, holotype; stereophotographs of left portion of basicranium and posterior region of palate.
Figure 1. Aetiocetus weltoni, UCMP 122900, holotype skull. A in Skull anatomy of the Oligocene toothed mysticete Aetioceus weltoni (Mammalia; Cetacea): implications for mysticete evolution and functional anatomy
Figure 1. Aetiocetus weltoni, UCMP 122900, holotype skull. A, dorsal view; B, ventral view; C, left lateral view.
Figure 1 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 1. Some characteristic craniometric differences between young adult and older Arctonyx, as demonstrated by two female skulls of A. hoevenii from northern Sumatra. Above, USNM 269073, adult female from 'Atjeh'; below, ANSP 20232, young adult female from Gunung Leuser. Young adults generally match adults/old adults in overall length, but have the zygomata weakly expanded in comparison, the interorbital and postorbital regions less constricted, cranial cresting less pronounced, and the surfaces of the teeth less worn.
Figure 4. Aetiocetus weltoni, UCMP 122900, holotype skull. A in Skull anatomy of the Oligocene toothed mysticete Aetioceus weltoni (Mammalia; Cetacea): implications for mysticete evolution and functional anatomy
Figure 4. Aetiocetus weltoni, UCMP 122900, holotype skull. A, anterodorsal view; B, posterior view; C, lateral view of right anterior upper and lower dentition.
Figure 5 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 5. Grouped morphometric separation (discriminant function analysis) drawing from the same specimens and measurements for A. hoevenii, A. albogularis and A. collaris as in Figure 4 (Table 2). All ages (young adult, adult, old adult) pooled together; A. hoevenii, triangles; A. albogularis, diamonds; A collaris, squares.
Figure 13 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 13. Additional examples of variation in the larger cheekteeth (upper P4 and M1) of Arctonyx collaris, depicted photographically, to scale. Above, AMNH 87394, adult male, Laos (Bolovens Plateau); middle, AMNH 87395, young adult female, Laos (Bolovens Plateau); below, AMNH 37221, old adult, unsexed, Thailand ('Siam'). Scale bar = 10 mm.
Figure 11 in Skull anatomy of the Oligocene toothed mysticete Aetioceus weltoni (Mammalia; Cetacea): implications for mysticete evolution and functional anatomy
Figure 11. Phylogenetic hypotheses of aetiocetid relationships. A, previous study based on Barnes et al. (1995); B, this study.
Figure 10 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 10. Heads of Arctonyx spp., showing colour and size. A, Arctonyx albogularis, rendered from the holotype of A. taxoides, from eastern India. B, Arctonyx collaris, based on a specimen from Mt Toungoo, Myanmar. C, Arctonyx hoevenii of Sumatra, based on specimens at ANSP and a photograph by E. Jacobsen published by Robinson & Kloss (1918) and Long & Killingley (1983). A and B drawn by Pocock (1940, 1941), C drawn by the third author (L.E.H.).
Figure 7 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 7. Plate depicting Arctonyx collaris, or the 'Bali- Soar', from the original description of the genus and species by Cuvier (in Geoffroy & Cuvier, 1825). Based in part on this plate, we regard Arctonyx collaris as the original name for the larger Arctonyx species of mainland Asia (see text).
Figure 4 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 4. Ungrouped morphometric separation (principal components analysis) of specimens identified (on the basis of geography and qualitative features) as A. hoevenii, A. albogularis and A. collaris, drawing from ten craniodental measurements (Table 2). Symbols for taxa and ages as in Figure 3.
Figure 11 in The hog-badger is not an edentate: systematics and evolution of the genus Arctonyx (Mammalia: Mustelidae)
Figure 11. Map of the approximate distribution of Arctonyx spp. Verified point localities are figured for A. collaris (triangles) and A. hoevenii (circles). The approximate range of A. albogularis is shown by cross-hatching, mainly as documented by Pocock (1941), Zhang (1997) and the present study. We have not seen specimens of Arctonyx from far south-eastern China, and only questionably refer these populations to A. albogularis (cf. Zhang, 1997).
Figure 6 in Phylogeny and evolutionary history of the Aplodontoidea (Mammalia: Rodentia)
Figure 6. Phylogeny of aplodontoids using all ordered characters, with ordered characters down-weighted. Tree scores are listed in Table 2.
Figure 5 in Phylogeny and evolutionary history of the Aplodontoidea (Mammalia: Rodentia)
Figure 5. Phylogeny of aplodontoids using some ordered characters, with ordered characters down-weighted. Tree scores are listed in Table 2.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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