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Photograph (A) and line drawing (B) of the skull of Asiatyrannus xui (ZMNH M30360) in right lateral view. The inset box in (A) indicates the position of the detailed jugal accessory horn in (C). acf accessory fossa of maxilla; ang angular; aof antorbital fenestra; cor cornual process; d dentary; d.t dentary tooth; emf external mandibular fenestra; en external naris; f frontal; gr groove; itf infratemporal fenestra; j jugal; jah jugal accessory horn; L left; la lacrimal; mf maxillary fenestra; mnvf maxillary neurovascular foramina; mx maxilla; nas nasal; nr nasal ridge; orb orbit; par parietal; pal palatine; pmx premaxilla; po postorbital; q quadrate; qj quadratojugal; R right; sa surangular; sf surangular foramen; snf subnarial foramen; sq squamosal; t1–6 maxillary tooth 1–6.

D. Dentary tooth crowns of Arenysaurus ardevoli (MPZ 2008/258) in lingual view. E. Caudal region of the skull roof of A. ardevoli (MPZ 2008/1) in dorsal view. F. Left dentary of A. ardevoli (MPZ 2008/258) in medial view.

Figure 1: Jianianhualong tengi holotype DLXH 1218. Scale bar, 50 cm. cav, caudal vertebrae; cv, cervical vertebrae; dv, dorsal vertebrae; fu, furcula; lfe, left femur; lh, left humerus; li, left ilium; lis, left ischium; lm, left manus; lp left pes; lpu, left pubis; lr, left radius; lu, left ulna; md, mandible; rc, right coracoid; rfe, right femur; rfi, right fibula; rh, right humerus; ri, right ilium; rm, right manus; rr, right radius; rs, right scapula; rt, right tibiotarsus; ru, right ulna; sk, skull; ss, synsacrum.

Diagram featuring the holotype (BNMNH-PV030) skull of the troodontid Papiliovenator neimengguensis, from the Bayan Mandahu Formation. Abbreviations: a, angular; d, dentary; f, frontal; j, jugal; l, lacrimal; m, maxilla; n, nasal; p, parietal; q, quadrate; s, surangular; sp, splenial.[1] References ↑ (2022). "A new troodontid from the Upper Cretaceous Gobi Basin of inner Mongolia, China". Cretaceous Research 130: Article 105052. DOI:10.1016/j.cretres.2021.105052.

Partial skull of Abrictosaurus consors in left lateral view (NHMUK RU B54)

Holotype skull of Thalattoarchon saurophagis at the Field Museum of Natural History.

Balaenognathus maeuseri gen. et sp. nov.: comparative interpretive drawings of the skulls of suspension feeding ctenochasmatoid pterosaurs in dorsal aspect. Balaenognathus this paper; Pterodaustro based on Bonaparte (1978); Plateleorhynchus based on Howse and Milner (1995); Gnathosaurus based on specimen JME-SOS 4580; Ctenochasma based on (2007 Fig. 2F)

Photograph of the holotype of Linhevenator tani (LH V0021). Abbreviations: ds, dorsal series; lf, left femur; li, left ischium; lpe, left pes; rh, right humerus; rs, right scapula; sk, skull. Scale bar equals 20 mm.

Mounted skull of EMK 0012 (Lokiceratops rangiformis holotype). (A) Mounted skull in posterior view. (B) Mounted skull in right lateral view. (C) Mounted skull in dorsal view. (D) Mounted skull in left lateral view. Areas in gray are reconstructed. Minor changes from side to side and in the orbits are the result of post-depositional deformation. Photos contain parallax. Scale bar equals 1 m.

Reconstruceted skull of Dubreuillosaurus illustrating known (white) and unknown (grey) material. Scale bar is 10cm. Based of figures and description of Allain (2002) "Discovery of megalosaur (Dinosauria, Theropoda) in the middle Bathonian of Normandy (France) and its implications for the phylogeny of basal Tetanurae"

skull of iguanodontian Altirhinus kurzanovi

Reconstructed skull of the holotype and only specimen of Leshansaurus qianweiensis based on the possibly related megalosaurid Dubreuillosaurus valesdunensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy from figures in Fei et al. (2009) "A new carnosaur from the Late Jurassic of Qianwei, Sichuan, China". White bones are figured, light grey bones are unfigured and minimally described.

Nemicolopterus crypticus holotype (IVPP V-14377). (A) Skeleton overview, and (B) schematic drawing. (C) Skull (right lateral view), and (D) schematic drawing. Abbreviations: cdv, caudal vertebrae; co, coracoid; cv, cervical vertebra; d1–d4, digits 1–4; f, frontal; fe, femur; h, humerus; hy, hyoid; il, illium; is, ischium; j, jugal; l, left; la, lacrimal; mand, mandible; mc, metacarpal; mt, metatarsal; naof, nasoantorbital fenestra; or, orbit; pa, parietal; pm, premaxilla; ph, phalanx; ti, tibia; r, right; sca, scapula. Scale bars: A–B, 100 mm; C–D, 5 mm.

Udelartitan is a titanosaurian sauropod from the Late Cretaceous of what is now Uruguay. It had the typical sauropod body plan, standing on four thick pillar-like legs, and possessing a long neck. Titanosaurs are a very diverse group, Udelartitan was a small one, estimated at only 15 m in body length. Though a skull has yet to be discovered, it probably had peglike teeth, and a large gut for processing vegetation.

Ludodactylus sibbicki. A, B, holotype (SMNK PAL 3828) skull and lower jaw in right lateral view.

Reconstruction of the skull of Spinops sternbergorum gen. et sp. nov. from the Campanian of Dinosaur Provincial Park, southern Alberta, in right lateral view. Preserved elements are stippled; missing portions are dotted and modeled after Centrosaurus apertus.