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FIG. 1 in platform margin (lower Barremian, southern Vercors, SE France)

FIG. 1. — Palaeogeographic map of the Vocontian Basin and surrounding carbonate platforms during the Barremian times. Adapted from Jacquin et al. (1991).

FIG. 14 in platform margin (lower Barremian, southern Vercors, SE France)

FIG. 14. — Synthetic palaeogeographic map for the location and extension of the recognized scour zones and their effects in the southern Vercors and the Vocontian Basin (modified from Ferry 1976; Ferry & Flandrin 1977; Arnaud 1981). Figure provided by M. Olivier Parize, from the ENS Mines de Paris.

FIG. 2 in platform margin (lower Barremian, southern Vercors, SE France)

FIG. 2. — Schematic cross-section of the Barremian southern Vercors carbonate platform and its biostratigraphy. Adapted from Arnaud (1981) and Everts (1994); biostratigraphy after Rawson (1996).

FIG. 4 in platform margin (lower Barremian, southern Vercors, SE France)

FIG. 4. — Prograding (Bi5-1) and aggrading (Bi5-2) geometry of the Barremian southern Vercors carbonate platform (see Fig. 3 for location, northern part of area 3).

FIG. 12 in platform margin (lower Barremian, southern Vercors, SE France)

FIG. 12. — Plan view of the presumed extension surface of the disturbed zone over the Glandasse Plateau.

FIG. 6 in platform margin (lower Barremian, southern Vercors, SE France)

FIG. 6. — The northwestern flank of the Archiane Valley: Aubaise Combe (see Fig. 3 for location, area 2) showing Bi5 units. Bi5-1 progrades southwards whereas Bi5-2 has a more aggradational geometry.

FIG. 10 in platform margin (lower Barremian, southern Vercors, SE France)

FIG. 10. — Menée logs of the southern part of the eastern flank of the Archiane Valley showing two coarse bioclastic limestone units (white arrows) within the hemipelagic part of the Bi5 Member (see Fig. 3 for location, area 6).

FIG. 5 in platform margin (lower Barremian, southern Vercors, SE France)

FIG. 5. — The eastern flank of the Archiane Valley (see Fig. 3 for location, area 1): composite photograph, interpretation and thin sections of the Bi5 Member, from proximal to distal part. Notice that the thin section in the middle has been sampled in a place showing the distal effects of storms. Adapted from Quesne (1996).

FIG. 9 in platform margin (lower Barremian, southern Vercors, SE France)

FIG. 9. — Detailed observations of the disturbed zone on the western flank of the Archiane Valley (see Fig. 3 for location, area 5); A, disturbed zone structures; B, dip directions of the tilted blocks; C, imbricated limestone blocks; D, aircraft-wing-shaped slump features (cover lens for scale).

Fig. 11 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 11. Biogeographic distribution of dortokid turtles during the Early Cretaceous modified from Cadena and Joyce (2015), Perez-García et al. (2017) and Augustin et al. (2021).

Fig. 10 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 10. Appendicular elements of IWCMS 2018.44. A-F, Right humerus; G-L, proximal end of the left humerus; M-R, right femur; S-X, proximal end of the right fibula; Y-AD, distal end of the right tibia; in ventral (A,G,M,S,Y), posterior (B,H,N,T,Z), dorsal (C,I,O,U,AA), anterior (D,J,P,V,AB), medial (E,K,Q,W,AC), and distal (F,L,R,X,AD) views.

Fig. 8 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 8. Elements of the girdles of IWCMS 2018.44. A-F, right scapula; G-L, left scapula; M-R, proximal end of the right coracoid; S-X, left coracoid. These elements are shown in posterior (A,G,M,S), ventral (B,H,O,V), dorsal (C,I,P,T), anterior (D,J,N,U), proximal (E,K,Q,W), and distal (F,L,R,X) views.

Fig. 9 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 9. Visceral view of the left hypoplastron and xiphiplastron with the left pelvis (A), and virtually removing the pelvis (B) to show the pubic scar of IWCMS 2018.44. C-N, Left (C- H) and right (I-N) pelvis in posterior (C,I), anterior (D,J), dorsal (E,K), ventral (F,L), medial (G,M), and lateral (H,N) views. Abbreviations: hyp, hypoplastron; il, illium; is, ischium; ob, obturator foramen; ps, pubic scar; pu, pubis; xi, xiphiplastron.

Fig. 6 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 6. Dorsal vertebrae of IWCMS 2018.44. A-F, complete dorsal vertebra with fused neural; G-L, dorsal vertebra centrum; M-R, dorsal vertebra centrum; S-X, complete dorsal vertebra; Y-AD, neural arch of a posterior dorsal vertebra. All of them are shown in left lateral (A,G,M,S,Y), right lateral (B,H,N,T,Z), anterior (C,I,O,U,AA), posterior (D,J,P,V,AB), dorsal (E,K,Q,W,AC), and ventral (F,L,R,X,AD) views.

Fig. 5 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 5. Cervical vertebrae of IWCMS 2018.44. A-F, neural arch of the axis (cervical vertebra 2); G-L, cervical vertebra 3; M-R, cervical vertebra 4; S-X, cervical vertebra 5; Y-AD, cervical vertebra 6; AE-AJ, cervical vertebra 7; AK-AP, cervical vertebra 8. All of them are shown in left lateral (A,G,M,S,Y,AE,AK), right lateral (B,H,N,T,Z,AF,AL), anterior (C,I,O,U,AA,AG,AM), posterior (D,J,P,V,AB,AH,AN), dorsal (E,K,Q,W,AC,AI,AO), and ventral (F,L,R,X,AD,AJ,AP) views.

Fig. 4. IWCMS 2018.44 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 4. IWCMS 2018.44, partial skeleton of Eodortoka cf. morellana. A,C,E, virtual three-dimensional reconstruction of the left shell plates and of the bones preserved inside the specimen; B,D,F, virtual three-dimensional reconstruction of the bones virtually removing the shell, in dorsal (A,B), ventral (C,D), and left lateral (E,F) views. The anterior and posterior ends of the shell cannot be reconstructed because they were not accurately scanned (black in A, E). The plates of the shell and the bones were reconstructed independently (shell plates in yellow, vertebrae in green, appendicular bones in blue, and girdles in pink). Abbreviations: c, costal; cav, caudal vertebra; cev7, seventh cervical vertebra; cev8, eighth cervical vertebra; dv, dorsal vertebra; hyo, hyoplastron; hyp, hypoplastron; lcor, left coracoid; lhu, left humerus; lil, left illium; lis; left ischium; lsc, left scapula; me, mesoplastron; ne, neural; p, peripheral; rfe, right femur; rfi, right fibula; rhu; right humerus; rpu, right pubis; rsc, right scapula; rti, right tibia; sv, sacral vertebra; xi, xiphiplastron.

Fig. 1 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 1. Geology of the Isle of Wight showing the discovery site of Eodortoka cf. morellana IWCMS.2018.44 from the Wessex Formation. A, Map of the Isle of Wight with the locality indicated by a red star, modified from Gale (2019). B, Simplified stratigraphic column of the Wessex Formation of Compton and Brook Bays, with range of original horizon shown. C, Photo of Brook Bay showing the exposed Wessex Formation, with an arrow indicating where the specimen was found.

Fig. 2 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 2. Tera Wasserburg plot of turtle calcite 206Pb/238U intercept age. Quoted ages include propagated 2% long-term reproducibility of secondary reference material.

Fig. 3. IWCMS 2018.44 in A well preserved pan-pleurodiran (Dortokidae) turtle from the English Lower Cretaceous and the first radiometric date for the Wessex Formation (Hauterivian-Barremian) of the Isle of Wight, United Kingdom

Fig. 3. IWCMS 2018.44, partial skeleton of Eodortoka cf. morellana. A, dorsal view, B, ventral view, C, anterior view, D, posterior view, E, left lateral view, F, right lateral view. G-H, details of the ornamental pattern on the outer surface of the shell, at the level of the left first costal (G) and of the left hypoplastron (H).