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Fig. 2 in Discovery of chemosynthesis-based association on the Cretaceous basal leatherback sea turtle from Japan

Fig. 2. Basal leatherback sea turtle Mesodermochelys sp. (NMV50) from Nio Creek, Nakagawa, Japan, Campanian, Upper Cretaceous. Carapace with drill holes on its surface, in dorsal (A) and anterior (B) views. Examples of drill holes (C, D), showing probable bivalve (arrow) in the hole (dashed line). Scale bars A, B, 50 mm; C, D, 10 mm.

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Fig. 1 in Discovery of chemosynthesis-based association on the Cretaceous basal leatherback sea turtle from Japan

Fig. 1. Geology of the locality where the nodule containing Mesodermochelys sp. (NMV50) and associated invertebrate fossils were found. A. Map of Hokkaido with distribution of Yezo Group, Cretaceous fore-arc basin deposits. B. Detailed geological map of the Nakagawa Area, after Hashimoto et al. 1967).

Fig. 9 in Unusual shell anatomy and osteohistology in a new Late Cretaceous panchelid turtle from northwestern Patagonia, Argentina

Fig. 9. Strict consensus tree from the four MPT's obtained from the morphological cladistic analysis of Rionegrochelys caldieroi gen. et sp. nov. The stars show the alternative positions of Pseudemydura umbrina. The numbers in the left of the lines are Bremer support values, whereas the numbers in the right of the lines are Jackknife and Bootstrap support values, respectively, that exceed 50%. Abbreviations: Af, Africa, SAm, South America, NAm, North America, Au, Australia; l-n, long-necked panchelids, s-n, short-necked panchelids.

Fig. 7 in Unusual shell anatomy and osteohistology in a new Late Cretaceous panchelid turtle from northwestern Patagonia, Argentina

Fig. 7. Comparison of thoracic vertebrae 1–3 in some extinct and extant pleurodiran turtles. A. Chelodina colliei Gray, 1856 (NHMUK 64-12-22-66). B. Elseya dentata (Gray, 1863) (NHMUK 76-5-19-27). C. Rionegrochelys caldieroi gen. et sp. nov. (MPCA-AT 258). D. Chelus fimbriatus (Schneider, 1783) (MZUSP 2619). E. Phrynops hilarii (Duméril and Bibron, 1835) (MHNSR H-1550). F. Platemys platycephala (Schneider, 1792) (MHNSR H-1554). G. Rheodytes leukops Legler and Cann, 1980 (QMJ 7693). H. Acanthochelys macrocephala (Rhodin, Mittermeier, and McMorris, 1984) (MACN H-8288). I. Hydromedusa tectifera Cope, 1870 (MHNSR-H 1615). J. Mesoclemmys nasuta (Schweigger, 1812) (MACN H-11967). K. Podocnemis sextuberculata Cornalia, 1849 (MZUSP 2501). L. Pelomedusa subrufa (Bonnaterre, 1789) (SMF 7953). M. Yaminuechelys gasparinii de la Fuente, Lapparent de Broin, and Manera de Bianco, 2001 (MPA 86-86-IC). Scale bars 20 mm.

Fig. 6 in Unusual shell anatomy and osteohistology in a new Late Cretaceous panchelid turtle from northwestern Patagonia, Argentina

Fig. 6. The holotype of the panchelid turtle Rionegrochelys caldieroi gen. et sp. nov. (MPCA-AT 258) from Parrita site, Upper Cretaceous. Thoracic vertebrae 1–3 in dorsal (A), ventral (B), and lateral (C) views. Photographs (A1–C1) and explanatory drawings (A2–C2).

Fig. 4 in Unusual shell anatomy and osteohistology in a new Late Cretaceous panchelid turtle from northwestern Patagonia, Argentina

Fig. 4. Photographs of the holotype of the panchelid turtle Rionegrochelys caldieroi gen. et sp. nov. (MPCA-AT 258) from Parrita site, Upper Cretaceous. Carapace in dorsal (A) and visceral (B) views. Plastron in ventral view (C). Carapace and plastron in anterior (D) and lateral (E) views. Note suturally attached pelvic girdle.

Fig. 3. A in Unusual shell anatomy and osteohistology in a new Late Cretaceous panchelid turtle from northwestern Patagonia, Argentina

Fig. 3. A. General view of the Upper Cretaceous outcrops of the "El Anfiteatro" area, northern Patagonia, Argentina, where the holotype of Rionegrochelys caldieroi gen. et sp. nov. was found. B. In situ photograph of the holotype of Rionegrochelys caldieroi gen. et sp. nov. C. Levels of the Plottier Formation (arrow indicates the location of specimen). D. Transportation of the holotype.

Fig. 2 in Unusual shell anatomy and osteohistology in a new Late Cretaceous panchelid turtle from northwestern Patagonia, Argentina

Fig. 2. Stratigraphic profile of the Plottier Formation outcrop, showing the levels where Rionegrochelys caldieroi de la Fuente, Maniel, and Jannello gen. et sp. nov. was recovered. Colours of deposits are indicated accord to Rock-Color Chart Committee (1991). Modified from Salgado et al. (2009).

Fig. 5 in Unusual shell anatomy and osteohistology in a new Late Cretaceous panchelid turtle from northwestern Patagonia, Argentina

Fig. 5. Explanatory drawings of the holotype of the panchelid turtle Rionegrochelys caldieroi gen. et sp. nov. (MPCA-AT 258) from Parrita site, Upper Cretaceous. Carapace in dorsal (A) and visceral (B) views. Plastron in ventral view (C). Carapace and plastron in anterior (D) and lateral (E) views. Note suturally attached pelvic girdle.

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Fig. 2 in The endocranial anatomy of the stem turtle Naomichelys speciosa from the Early Cretaceous of North America

Fig. 2. Cranial endocast, nasal cavity, and inner ear (plus cavum acustico-jugulare, A1 and blood vessels) of helochelydrid turtle Naomichelys speciosa Hay, 1908 (FMNH PR273) from the Early Cretaceous (Aptian/ Albian) Trinity Group, Texas; in right lateral (A1), right posterolateral (A2), dorsal (A3), and ventral (A4) views. 1, lateral branch of the internal carotid artery; 2, anteromedial branch of the carotid artery; 3, cerebral artery; 4,?unnamed branch of the nervi vidiani.

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Fig. 3 in The endocranial anatomy of the stem turtle Naomichelys speciosa from the Early Cretaceous of North America

Fig. 3. Detail of the cranial endocast and blood vessels of helochelydrid turtle Naomichelys speciosa Hay, 1908 (FMNH PR273) in right lateroventral view. The image also includes the cavum acustico-jugulare, right inner ear, and cranial nerves V and VI. 1, lateral branch of the internal carotid artery; 2, anteromedial branch of the carotid artery; 3, cerebral artery; 4,?unnamed branch of the nervi vidiani. Not to scale.

Fig. 4 in A new freshwater basal eucryptodiran turtle from the Early Cretaceous of Spain

Fig. 4. Dorsal view of the eucryptodiran turtle Hoyasemys jimenezi gen. et sp. nov. (MCCM−LH 84) from the Early Cretaceous of Las Hoyas, Spain. Photograph (A) and explanatory drawing (B).

Fig. 5. Majority rule tree from the 87 in A new freshwater basal eucryptodiran turtle from the Early Cretaceous of Spain

Fig. 5. Majority rule tree from the 87 maximum parsimonious trees produced by the cladistic analysis of Hoyasemys jimenezi in the modified data set of Joyce (2007). Retention index (RI) = 0.863 and consistency index (CI) = 0.569. Values refer percentages under 100% obtained in the majority rule analysis. Branchs with percentage under 50% are collapsed. Letters refer to the nodes mentioned in the text.

Fig. 2 in A new freshwater basal eucryptodiran turtle from the Early Cretaceous of Spain

Fig. 2. Skull and cervical vertebrae of the eucryptodiran turtle Hoyasemys jimenezi gen. et sp. nov. (MCCM−LH 84) from the Early Cretaceous of Las Hoyas, Spain. Photograph (A) and explanatory drawing (B).

Fig. 1 in A new freshwater basal eucryptodiran turtle from the Early Cretaceous of Spain

Fig. 1. Geographical and geological location of the fossil site of Las Hoyas (Cuenca, Spain), in the Mesozoic context of the Iberian Ranges.

Fig. 3 in A new freshwater basal eucryptodiran turtle from the Early Cretaceous of Spain

Fig. 3. Ventral view of the eucryptodiran turtle Hoyasemys jimenezi gen. et sp. nov. (MCCM−LH 84) from the Early Cretaceous of Las Hoyas, Spain. Photograph (A) and explanatory drawing (B).

Fig. 7 in The European Early Cretaceous cryptodiran turtle Chitracephalus dumonii and the diversity of a poorly known lineage of turtles

Fig. 7. Disarticulated carapace of cryptodiran turtle Chitracephalus dumonii Dollo, 1885, ICIPLR−1, from the Barremian–Aptian of Torremuña (La Rioja, Spain). A–E. Fragments of costal plates. F–L. Peripheral plates and fragments of these plates. All elements are represented in dorsal view (A1–L1), explanatory drawings in that view (A2–L2), and ventral view (A3–L3)

Fig. 6 in The European Early Cretaceous cryptodiran turtle Chitracephalus dumonii and the diversity of a poorly known lineage of turtles

Fig. 6. Specimen of cryptodiran turtle Chitracephalus dumonii Dollo, 1885, MDS−JTS.V.1–40, from the Hauterivian–Barremian of Tenadas del Jabalí (Burgos, Spain). A. MDS−JTS.V.2, plastron in ventral view, photograph (A1), explanatory drawing (A2). B. MDS−JTS.V.4–5, pelvis in ventral (B1) and left lateral (B2) views. C. MDS−JTS.V.3, right scapula and coracoid, in anterolateral view. D. MDS−JTS.V.6–7, left scapula and coracoid, in anterolateral view. E. MDS−JTS.V.26, right humerus in distal (E1), proximal (E2), dorsal (E3), medial (E4), and lateral (E5) views. F. MDS−JTS.V.27, left humerus in distal (F1), proximal (F2), and lateral (F3) views. G. MDS−JTS.V.25, right femur in distal (G1), proximal (G2), dorsal (G3), medial (G4), and lateral (G5) views. H. MDS−JTS.V.30, right tibia in medial (H1) and lateral (H2) views. I. MDS−JTS.V.10, sacral or anteriormost caudal vertebra in dorsal (I1) and ventral (I2) views. J. MDS−JTS.V.37, caudal vertebra in proximal (J1), dorsal (J2), distal (J3), and ventral (J4) views. K. MDS−JTS.V.39, caudal vertebra in proximal (K1), dorsal (K2), distal (K3), and ventral (K4) views.

Fig. 4 in The European Early Cretaceous cryptodiran turtle Chitracephalus dumonii and the diversity of a poorly known lineage of turtles

Fig. 4. Holotype of cryptodiran turtle Chitracephalus dumonii Dollo, 1885 from the Barremian–Aptian of Bernissart (Hainaut, Belgium). A, B. IRSNB R11. Plastron and appendicular skeleton in ventral view (A), detail of the left hindlimb (B). C–E. IRSNB R12. Second to fifth cervical vertebrae, in dorsal (C), left lateral (D), and ventral (E) views. Photographs (A1, B1, C1, D1, E1) and explanatory drawings (A2, B2, C2, D2, E2).

Fig. 3 in The European Early Cretaceous cryptodiran turtle Chitracephalus dumonii and the diversity of a poorly known lineage of turtles

Fig. 3. Holotype of cryptodiran turtle Chitracephalus dumonii Dollo, 1885, from the Barremian–Aptian of Bernissart (Hainaut, Belgium). A, B. IRSNB R11. Carapace and appendicular skeleton in dorsal view (A), detail of the left forelimb (B). C, D. IRSNB R12. Skull in dorsal (C) and ventral (D) views. Photographs (A1, B1, C1, D1) and explanatory drawings (A2, B2, C2, D2).