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Fig. 19 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 19. Temporally calibrated cladogram showing the phylogenetic hypothesis generated by the current study. Note that many terminal taxa in this cladogram (Scincogekkonomorpha, Acrodonta, 'priscagamines', Hoplocercidae, Polychrotidae, and Tropiduridae) were subdivided for the actual cladistic analysis performed in this study (see appendix 1). Taxonomic intervals are approximate and derived primarily from Estes (1983), but supplemented by Norell and de Queiroz (1991), Evans (1994), and Conrad et al. (in press). Timescale adapted from Gradstein et al. (1999). Bremer supports for all displayed iguanian nodes is 1, except the polychrotid-corytophanid clade.

Fig. 15 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 15. Photo of the pelvis and left hind limb of Saichangurvel davidsoni (IGM 3/858) in dorsolateral view.

Fig. 14 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 14. Left forelimb of Saichangurvel davidsoni (IGM 3/858). A, Photo in anterior view; B, drawing in dorsolateral view.

Fig. 13. A in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 13. A, left scapulocoracoid and suprascapula of Saichangurvel davidsoni (IGM 3/858) in dorsal view. Ribs overlie parts of the scapulocoracoid, but these hidden parts are reconstructed in gray; enough of the girdle is visible to confirm the presence of two bars forming the primary (1cf) and secondary (2cf) coracoid emarginations. The suprascapula is show as

Fig. 12 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 12. Stereophotograph of the Saichangurvel davidsoni (IGM 3/858) pectoral girdle and left forelimb in dorsal view.

Fig. 16 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 16. Drawing of the left side of the pelvis (medial view) in Saichangurvel davidsoni (IGM 3/ 858). Reconstructed portions of the ischium and pubis are shown as semitransparent shadow layers.

Fig. 11 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 11. Drawings of selected caudal vertebrae of Saichangurvel davidsoni (IGM 3/858) in right lateral view: A, caudal vertebra 4; B, caudal vertebra 9; C, caudal vertebra 14; D, caudal vertebra 20. Reconstructed portions (missing or hidden in the specimen) are represented as semitransparent shadows.

Fig. 10 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 10. Dorsal view of the sacrum and surrounding vertebrae in Saichangurvel davidsoni (IGM 3/858); anterior is toward the top. Note the presence of an autotomy plane in the fourth caudal vertebrae.

Fig. 8 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 8. Drawings of selected pleurodontan mandibles in medial view, anterior to the right. A, reconstruction of Saichangurvel davidsoni with semitransparent areas representing restored areas; B, Gambelia copei; C, Hoplocercus spinosus (AMNH 93807); D, Leiocephalus carinatus. B, modified after McGuire (1996); D, modified after Frost and Etheridge (1989). Note the variability in the splenial morphology as it relates to the closure of Meckel's canal.

Fig. 6. A in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 6. A, photograph; and B, drawing of the posterodorsal view of the orbital wall and palate of Saichangurvel davidsoni (IGM 3/858).

Fig. 5 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 5. Drawings of dorsal skull surfaces in the area of the parietal foramen: A, Temujinia ellisoni; B, Zapsosaurus sceliphros; C, Priscagama gobiensis. Dorsal view of skulls: D, Ctenomastax parva; E, Gambelia wislizenii; F, Diplolaemus bibroni (REE 2506). A–C, modified after photos in Gao and Norell (2000); D, composite illustration modified after Gao and Norell (2000: figs. 3–4). Reconstructed areas are shown as semitransparent shadow layers. E, modified after Maisano (2003a).

Fig. 9 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 9. Anterior part of the skeleton of Saichangurvel davidsoni (IGM 3/858) in dorsolateral view to show the variability of the presacral vertebrae as it relates to vertebral length and neural spine morphology. See the text for details.

Fig. 4 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 4. Reconstructed skull of Saichangurvel davidsoni (IGM 3/858). A, dorsal view; B, left lateral view. Note that reconstructed elements appear as semiopaque shadows. No detail is given for the mandible in B, because only the medial view is visible as the specimen is preserved (see fig. 8).

Fig. 3 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 3. Skull of Saichangurvel davidsoni (IGM 3/858). A, photograph; and B, drawing of the skull as preserved, in dorsal view.

Fig. 7 in A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade

Fig. 7. Drawing of the braincase, posterior skull roof, and anterior cervical vertebrae of Saichangurvel davidsoni (IGM 3/858): A, posterolateral view; B, lateral view.

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FIG. 6. A. IGM 100 in A new specimen of the ornithischian dinosaur Haya griva, cross-Gobi geologic correlation, and the age of the Zos Canyon beds

FIG. 6. A. IGM 100/3181.Two carpals in unknown orientation. B. Metacarpal I and manual phalanx I-1 in dorsal view. C. Metacarpal II or III and manual phalanx in dorsal view. D. Manual phalanx in dorsal view. E. Three ungual phalanges in partial dorsal view.

Fig. 8 in Synopsis of the ptereleotrine goby genus Nemateleotris, with description of a new species from the western and central Pacific Ocean (Teleostei: Gobiidae)

Fig. 8. Species of Nemateleotris and their putative hybrids. A, N. helfrichi, underwater photograph from Rarotonga, Cook Islands; B, N. lavandula, new species, underwater photograph from Siaes Tunnel, Palau; C, head profiles of N. helfrichi (left) and N. lavandula, new species, (right) showing difference in colouration of the head and maxilla; D, N. magnifica, underwater photograph from Bali; E–F, N. decora, showing variability in colouration of the anterior body, underwater photograph from Fiji and the Maldives (the latter = N. exquisita sensu Randall & Connell, 2013) respectively; G, putative N. magnifica × N. decora, underwater photograph from Izu Peninsula, Japan; H, putative N. magnifica × N. lavandula, new species, underwater photograph from Okinoerabu Island, Japan. Photographs by: A, P.Jaletzky; B, R. Spangler; C, Y.K. Tea; D, V. Chalias; E, J. Heard; F, M. Harada; G, Y. Yamada; H, K. Uehara.

Fig. 9 in Synopsis of the ptereleotrine goby genus Nemateleotris, with description of a new species from the western and central Pacific Ocean (Teleostei: Gobiidae)

Fig. 9. Frontal head profiles of selected species of Nemateleotris. A, N. helfrichi, aquarium specimen from Cook Islands; B, N. lavandula, new species, ZRC 62990, paratype in life, specimen from Kwajalein Atoll, Marshall Islands, Micronesia; C, N. decora, underwater photograph from Bali, Indonesia; D, N. magnifica, underwater photograph from Bali, Indonesia. Photographs by: A, B-box Aquarium, Japan; B, H.H. Tan; C–D, V. Chalias.

Fig. 7 in Synopsis of the ptereleotrine goby genus Nemateleotris, with description of a new species from the western and central Pacific Ocean (Teleostei: Gobiidae)

Fig. 7. Nemateleotris lavandula, new species, underwater photograph from Siaes Tunnel, Palau. Photograph by: R. Spangler.

Fig. 6 in Synopsis of the ptereleotrine goby genus Nemateleotris, with description of a new species from the western and central Pacific Ocean (Teleostei: Gobiidae)

Fig. 6. Nemateleotris lavandula, new species, underwater photograph from Ogasawara, Japan, 35 m. Note juvenile Cirrhilabrus lunatus (left) and Pycnochromis alleni (above left in background). Photograph by: S. Kobayashi.