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Reconstructed skull of the dromaeosaurid Adasaurus mongoliensis. The holotype IGM 100/20 preserves a partial right side of the skull and other postcrania including the hindlimbs, it has an estimated length of 2 m (6.6 ft) with a weight of 15 kg (33 lb).[1] Skull mainly based on Turner et al. 2012 and Mickey Mortimer.[2][3] Color Key   Known   Unknown

Linheraptor skull

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.

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.

Skull of troodontid theropod Xixiasaurus henanensis gen. et sp. nov. (HGM 41HIII−0201; holotype), lower–middle Majiacun Formation (Upper Cretaceous: Coniacian–Campanian), Henan Province, China; in dorsal (A); lateral (B), and ventral (C) views. Note that this version of the image does not include the interpretative lines of the version in the paper.

Reconstructed skull of Archaeornithoides, known material in brown.

Skull of MPC-D 100/32-a (Rinchenia mongoliensis).

Skull of Huanansaurus ganzhouensis (HGM41HIII-0443).

Skull of Banji long. The horizontal line projected through the posterodorsal corner of the antorbital fenestra is parallel to the line linking the articular end of the quadrate and the ventral margin of the premaxillae.

Holotype of Jaculinykus yaruui gen. et sp. nov. (MPC-D 100/209). (A) Photograph of the specimen. (B) Explanatory drawing of (A). Highlighted areas refer to the indication of the skeletal elements; skull in green, tail in grey, pectoral girdle and forelimbs in red, pelvis and hind limbs in purple. (C) Reconstruction of Jaculinykus yaruui gen. et sp. nov. Grey areas are missing parts.

A) Skull reconstruction of Murusraptor barrosaensis, MCF-PVPH-411. B) Body reconstruction of Murusraptor barrosaensis, MCF-PVPH-411. Both illustrations show recovered elements in white. Scale bars: A = 10 cm, B = 1 m.

Fig. 2. Selected cranial elements of Bicentenaria argentina nov. gen. et nov. sp. A, left lateral view of preserved caudal half of skull and jaws; B, right lateral view of preserved caudal half of skull and jaws; C, left quadrate and lower jaw in caudal view; D, fragmentary premaxillae with teeth in left lateral view; E, fragmentary left maxilla with tooth in lateral view. Abbreviations: an, angular; antf, antorbital fossa; art, articular; bs, basipterygoid process of basisphenoid; ch, notch for the chorda tympanica; gl, glenoid fossa; j, jugal; lc, lateral condyle of quadrate; lr, longitudinal ridge; ect, ectopterygoid; prar, right prearticular; pral, left prearticular; ptq, pterygoid ramus of quadrate; q, quadrate; qj, quadratojugal; sanl, left surangular; sanr, right surangular; rart, retroarticular process; t, tooth. Scale bars = 1 centimeter.

Proceratosaurus bradleyi holotype NHMUK PV R 4860. Almost complete skull and mandibles in articulation, hyoid element and anterior cervical vertebrae in oolite block.

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.

Skull diagram of Panguraptor lufengensis illustrating known material. Scale bar is 1 cm.