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a Skeletal reconstruction of A. greppini. Elements preserved in the material and therefore providing information for the skeletal reconstruction are marked in blue. Because much information is missing from the incomplete skeletal material, the dorsal vertebrae, the proportions and morphology of the cervical vertebrae and the skull were modified from Camarasaurus. b Scaled silhouette drawings of Cetiosauriscus stewarti (in black) and A. greppini (in grey) demonstrating the significant size difference between the two taxa. Scale bar is 1 m

Atsinganosaurus velauciensis (VBN 93.01), late Campanian, Velaux-La Bastide Neuve, Bouches-de-Rhône, southern France. Posterior dorsal vertebra, right lateral view. Scale bar equals 10 cm.

Lusotitan atalaiensis. Photographs of right humerus (proximal half) in (A) anterior (slightly oblique as a result of mounted position), (B) medial, (C) proximal, (D) lateral, and (E) posterior views. Abbreviations: dtp, deltopectoral crest; hh, humeral head. Scale bar = 200 mm.

Middle cervical vertebra of Vouivria damparisensis (MNHN.F.1934.6 DAM 6). (A) Left lateral view, (B) anterior view, (C) right lateral view; (D) posterior view. Abbreviations: cpol, centropostzygapophyseal lamina; di, diapophysis; cprl, centroprezygapophyseal lamina; espol, expanded spinopostzygapophyseal lamina; no, notch; ns, notch; pa, parapophysis; pn, pneumatic foramen; pocdf, postzygapophyseal centrodiapophyseal fossa; podl, postzygodiapophyseal lamina; poz, postzygapophysis; prz, prezygapophysis; ri, ridge; sdf, spinodiapophyseal fossa; spol, spinopostzygapophyseal lamina; sprl, spinoprezygapophyseal lamina. Scale bar equals 10 cm.

Rhoetosaurus brownei (QM F1659; holotype [part]) right crus and pes in anterodorsal view. Scale = 20 cm.

Left Femur in caudal view Lapparentosaurus madagascariensis missing the mid-shaft section; FC = fibular condyle; FH = femoral head; GT = greater trochanter; ICG = intercondylar groove; TC = tibial condyle. Scale = 10 cm.

Skull diagram showing the known material of Aardonyx. Based on photographs and measurements in original description and supplementary material. Scale bar = 10 cm

Photographs of the skull of BP/1/4779. (A) Right lateral view. (B) Dorsal view. (C) Left lateral view. Scale bar represents 10 mm. Photographs by Kimberley E.J. Chapelle.

Skull of the new basal sauropodomorph Leyesaurus marayensis (PVSJ 706). Photograph of the skull (A) and interpretative drawing (B) in lateral view. Dark grey color represents matrix and light grey color represents foraminae. Abbreviations: a, angular; aoF, antorbital fenestra; aoFo; antorbital fossa; Apmx, ascending process of the maxilla; d, dentary; f, frontal; itF, infratemporal fenestra; j, jugal; l, lacrimal; laoFo; lacrimal antorbital fossa; mF, mandibular fenestra; mx, maxilla; n, nasal; O, orbit; p, parietal; pf, prefrontal; pm, premaxilla; po, postorbital; rug, platform-like rugosities; q, quadrate; qj, quadratejugal; Rmx, ridge of the ascending process of the maxilla; sa, surangular; snf, subnarial foramen. Scale bar equals 1cm.

Three-dimensional skull of BMT 1955.G35.1, Protoichthyosaurus prostaxalis. (B) Skull in left lateral view, as reconstructed in 2015. (C) Skull in right lateral view, as reconstructed in 2015. Note the distinctive asymmetric maxilla with long, narrow anterior process. Teeth are not in their original positions. Scale bar represents 20 cm.

Figure description from paper: "A Cast of BES SC 999, the holotype of Besanosaurus leptorhynchus and (B) interpretative drawing (modified from Dal Sasso & Pinna, 1996). Foetal remains are highlighted with green lines. a astragalus, c calcaneum, Cl clavicle, Co coracoid, Fe femur, Fi Fibula, H humerus, i intermedium, Il Ilium, Is Ischium, P pubis, p pisiform, R radius, r radiale, S scapula, T Tibia, U Ulna, u ulnare; 2, 3, and 4, distal carpals and tarsals; II, III, IV, and V, metacarpals and metatarsals. The apostrophe (‘) indicates left elements. Scale bar represents 50 cm"

Figure description from paper: "A Cast of BES SC 999, the holotype of Besanosaurus leptorhynchus and (B) interpretative drawing (modified from Dal Sasso & Pinna, 1996). Foetal remains are highlighted with green lines. a astragalus, c calcaneum, Cl clavicle, Co coracoid, Fe femur, Fi Fibula, H humerus, i intermedium, Il Ilium, Is Ischium, P pubis, p pisiform, R radius, r radiale, S scapula, T Tibia, U Ulna, u ulnare; 2, 3, and 4, distal carpals and tarsals; II, III, IV, and V, metacarpals and metatarsals. The apostrophe (‘) indicates left elements. Scale bar represents 50 cm"

Figure description from paper: "A Cast of BES SC 999, the holotype of Besanosaurus leptorhynchus and (B) interpretative drawing (modified from Dal Sasso & Pinna, 1996). Foetal remains are highlighted with green lines. a astragalus, c calcaneum, Cl clavicle, Co coracoid, Fe femur, Fi Fibula, H humerus, i intermedium, Il Ilium, Is Ischium, P pubis, p pisiform, R radius, r radiale, S scapula, T Tibia, U Ulna, u ulnare; 2, 3, and 4, distal carpals and tarsals; II, III, IV, and V, metacarpals and metatarsals. The apostrophe (‘) indicates left elements. Scale bar represents 50 cm"

The holotype of Dianmeisaurus mutaensis (HFUT MT-21-08-001). (A) the skeleton in dorsal view; (B) the counterpart of (A) (natural mold). Scale bars equal 1 cm.

Eopteranodon lii holotype (BPV 078). (A) Counterpart; (B) main part. (C and D) Respective schematic drawings. Abbreviations: cv, cervical vertebra; co, coracoid; d1–d4, digits 1–4; fe, femur; fi, fibula; h, humerus; j, jugal; mand, mandible; mc, metacarpal; pmc, premaxillary crest; pe, pelvis; ph, phalanx; ti, tibia; ul, ulna; rad, radius. Scale bars: C, 50 mm; D, 10 mm.

Fragment of the mandibular symphysis of a tapejarid pterosaur (BSP 1997 I 67) from the Kem Kem Group in (A) ?left lateral, (B) ?right lateral and (C) dorsal (occlusal) view. Scale bar equals 5 cm.