Find research datasets worth reusing

opencc-by-4.0Jul 2005View details →

Fig. 2 in Zangerlia ukhaachelys, New Species, a Nanhsiungchelyid Turtle from the Late Cretaceous of Ukhaa Tolgod, Mongolia

Fig. 2. Zangerlia ukhaachelys, cranium of IGM 90/1, holotype, Upper Cretaceous of Mongolia. Photographs were manipulated digitally to enhance sutures. A, Left lateral view; B, right lateral view; C, frontal view; D, caudal view. See figure 1 for abbreviations.

opencc-by-4.0Jul 2005View details →

Fig. 1. Zangerlia ukhaachelys. IGM 90 in Zangerlia ukhaachelys, New Species, a Nanhsiungchelyid Turtle from the Late Cretaceous of Ukhaa Tolgod, Mongolia

Fig. 1. Zangerlia ukhaachelys. IGM 90/1, holotype, Upper Cretaceous of Mongolia. Photographs were manipulated digitally to enhance sutures. A, Oblique dorsal view of mandible; B, dorsal view of mandible; C, dorsal view of cranium; D, ventral view of cranium. Abbreviations: desc proc, descending process of frontal; ex, exoccipital; fr, frontal; mx, maxilla; op, opisthotic; pa, parietal; pf, prefrontal; pm, premaxilla; po, postorbital; pro, prootic; qu, quadrate; rec lab op, recessus labyrinthicus opisthoticus; rec lab pro, recessus labyrinthicus prooticus; so, supraoccipital; vo, vomer;?, bone of uncertain homology.

Fig. 11. Notoemys zapatocaensis, n in Notoemys zapatocaensis, a New Side-Necked Turtle (Pleurodira: Platychelyidae) from the Early Cretaceous of Colombia

Fig. 11. Notoemys zapatocaensis, n.sp. Restoration of known plastron elements. Scales labeled on left, bones on right.

Fig. 9. Notoemys zapatocaensis, n in Notoemys zapatocaensis, a New Side-Necked Turtle (Pleurodira: Platychelyidae) from the Early Cretaceous of Colombia

Fig. 9. Notoemys zapatocaensis, n.sp. IPN ISEAC140120031. Ventral view of shell with plastron elements.

Fig. 6. Notoemys zapatocaensis, n in Notoemys zapatocaensis, a New Side-Necked Turtle (Pleurodira: Platychelyidae) from the Early Cretaceous of Colombia

Fig. 6. Notoemys zapatocaensis, n.sp. Restoration of carapace in dorsal view. Scales labeled on left, bones on right.

Fig. 2 in Notoemys zapatocaensis, a New Side-Necked Turtle (Pleurodira: Platychelyidae) from the Early Cretaceous of Colombia

Fig. 2. Map of Tithonian (late Jurassic 140 million years ago) continental reconstruction (Smith and Briden, 1977) showing distribution of Platychelyidae. 1. Platychelys oberndorferi, ca. 152 mya. 2. Notoemys oxfordiensis, ca. 156 mya. 3. Notoemys zapatocaensis, ca. 135 mya. 4. Notoemys laticentralis, ca. 145 mya.

Fig. 5. Notoemys zapatocaensis, n in Notoemys zapatocaensis, a New Side-Necked Turtle (Pleurodira: Platychelyidae) from the Early Cretaceous of Colombia

Fig. 5. Notoemys zapatocaensis, n.sp. IPN ISEAC140120031. Anterolateral part of carapace in dorsal view showing very small peripheral 3.

Fig. 1 in Notoemys zapatocaensis, a New Side-Necked Turtle (Pleurodira: Platychelyidae) from the Early Cretaceous of Colombia

Fig. 1. Northwestern South America, showing Zapatoca, Colombia, where Notoemys zapatocaensis was found. Map based on satellite imagery from NASA/JPL/NIMA.

FIG. 4 in Reassessment of the oldest British turtle: Protochelys from the Middle Jurassic Stonesfield Slate of Stonesfield, Oxfordshire, UK

FIG. 4. — Chelonian fifth vertebral and pleural scales, Stonesfield Slate (UK), middle Bathonian: A, B, fifth vertebral; C-E, pleural scales; A, OUMNH J40407, complete fifth vertebral; B, BMNH 39198a, external mould of the right side of a fifth vertebral; C, D, BMNH R247b, complete right third pleural (D is the external mould); E, BMNH 39198, external mould of an almost complete scale (E1, non oriented) which can be interpreted either as a right fourth pleural (E2, preferred hypothesis) or as a left first pleural (E3) (the specimen is an external mould and needs to be reversed to retrieve the normal orientation). Abbreviations: M, marginal scale; P, pleural scale; V, vertebral scale. Scale bars: 10 mm (Figures E2 and E3 are not to scale).

FIG. 1 in Reassessment of the oldest British turtle: Protochelys from the Middle Jurassic Stonesfield Slate of Stonesfield, Oxfordshire, UK

FIG. 1. — Specimens from the Stonesfield Slate (UK) misidentified as chelonian: A, BMNH R896, specimen identified by Lydekker (1889: 222) as a "scapulo-precoracoid", but more probably an archosaur cervical rib; B, OUMNH J29907,fish scale labelled as a turtle scale; C, OUMNH unnumbered, specimen (two slabs) labelled as a turtle bony plate which consists of a splinter of compact bone maybe from a crocodilian osteoderm. Scale bars: 10 mm.

FIG. 2 in Reassessment of the oldest British turtle: Protochelys from the Middle Jurassic Stonesfield Slate of Stonesfield, Oxfordshire, UK

FIG. 2. — Turtle bones from the Stonesfield Slate (UK), middle Bathonian: A, BMNH 37979, right coracoid in dorsal view (proximal to the right) figured in Mackie (1863); B, BMNH R5320, plastron fragment (hyo- or hypoplastron) probably from the bridge area. Scale bars: 10 mm.

FIG. 5 in Reassessment of the oldest British turtle: Protochelys from the Middle Jurassic Stonesfield Slate of Stonesfield, Oxfordshire, UK

FIG. 5. — Reconstruction of the Stonesfield turtle, middle Bathonian: A, reconstruction based on available specimens (note that these specimens are not from the same individuals nor at the same scale); B, proposed reconstruction of the carapace of the Stonesfield turtle. The morphology of the first and second pleural (dashed lines) can be deduced from that of neighbouring scales. Marginals are unknown at Stonesfield and therefore are not represented on the present reconstruction.

Fig. 5 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar

Fig. 5. Partial dentary of possible bothremydid, UA 8708. Left ramus restored by reversing right ramus.

Fig. 4 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar

Fig. 4. Photographs of the partial dentary of a possible bothremydid, UA 8708, in: A, dorsal view; B, right lateral view; C, anterior view; and D, posterior view. Scale bar equals 3 cms.

Fig. 1 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar

Fig. 1. Photographs of the lower jaw of cf. Erymnochelys, FMNH PR 2231. A, Dorsal view; B, ventral view; C, anterior view; D, right lateral view; E, medial view of right jaw; and F, medial view of left jaw. Scale bar equals 1 cm.

Fig. 3 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar

Fig. 3. Photographs of the lower jaw of the extant Malagasy turtle Erymnochelys madagascariensis (Bavarian State Natural History Collection, Munich, no. 843/20, Mahajanga, Madagascar, collector Prof. Voeltzkow 1907). A, Dorsal view (see Gaffney and Zangerl, 1968: fig. 22C and E for comparable views of Bothremys); B, ventral view (see Gaffney and Zangerl, 1968: fig. 22A for comparable view of Bothremys); C, anterior view; D, right lateral view; E, medial view of right jaw; and F, medial view of left jaw. Scale bar equals 1 cm.

Fig. 2 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar

Fig. 2. Drawings of the lower jaw of cf. Erymnochelys, FMNH PR 2231. A, Dorsal view; B, ventral view; C, anterior view; D, right lateral view; and E, medial view of right jaw. Scale bar equals 1 cm.

opencc-zeroDec 2007View details →

FIG. 5 in Fossil sea turtles (Chelonii, Dermochelyidae and Cheloniidae) from the Miocene of Pietra Leccese (late Burdigalian-early Messinian), Southern Italy

FIG. 5. — Trachyaspis lardyi Meyer, 1843 (MAUL 988/1 detail), photograph and interpretative drawing. Note the hexagonal, narrow and elongated shape of the neural plate, and the proximal portion of the adjoining left pleural plate. Keels are represented by hard lines, and sectioned surface in grey. Abbreviations: n, neural; pl, pleural. Scale bar: 10 mm.

opencc-zeroDec 2007View details →

FIG. 4 in Fossil sea turtles (Chelonii, Dermochelyidae and Cheloniidae) from the Miocene of Pietra Leccese (late Burdigalian-early Messinian), Southern Italy

FIG. 4. — Trachyaspis lardyi Meyer, 1843 (MAUL 992/1), photograph and interpretative drawing of a large portion of a cheloniid carapace. Note the presence of three parallel ridges, the scute sulci pattern (where visible) and the sculptured surface. Abbreviations: bj, bone junction (dotted line); fs, fragmented surface (grey); r, ridge (continuous line); ss, scute sulci (dashed line). Scale bar: 50 mm.