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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.

Reconstruction of the skull of Lagenanectes richterae in right lateral view. Only the anterior part of the skull and lower jaw is preserved in the type and only known specimen. The posterior parts are reconstructed based on the related genus Libonectes.

Diagram featuring the holotype skull (ZPAL MgD-I/105) of Tylocephale gilmorei in left lateral view. Scale bar equals 5 cm (50 mm). Based on Maryańska & Osmólska, 1974,[1] and Sullivan, 2006.[2] References ↑ (1974). "Pachycephalosauria, a new suborder of ornithischian dinosaurs". Palaeontologica Polonica (30): 45−102. ↑ (2006). "A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia)". New Mexico Museum of Natural History and Science Bulletin (35): 347–365.

Photograph of the holotype skull of Titanoceratops ouranos, from the late Campanian aged Kirtland/Fruitland beds of New Mexico, USA. Photograph by Nick Longrich

Lateral diagram of the skull of Sinocephale bexelli (Bohlin, 1953) with unknown regions (grey) restored after Stegoceras

Cearadactylus atrox holotype (MN 7019-V), A, B, skull in left lateral view; C, skull and lower jaw in right lateral view

Paratype skull of Hamipterus tianshanensis on display at the Paleozoological Museum of China.

Paratype skull of Hamipterus tianshanensis on display at the Paleozoological Museum of China.

Reconstruction of the holotype skull (PIN 3906/2) of the Late Cretaceous sauropod Quaesitosaurus orientalis. Based on Kurzanov & Bannikov 1983,[1] missing elements restored after Nemegtosaurus.[2] Color Key   Preserved   Missing References ↑ (1983). "A new sauropod from the Upper Cretaceous of Mongolia". Paleontological Journal 2: 90−96. ↑ (2005). "Redescription of the mongolian sauropod Nemegtosaurus mongoliensis nowinski (dinosauria: Saurischia) and comments on late cretaceous sauropod diversity". Journal of Systematic Palaeontology 3 (3): 283−318. DOI:10.1017/S1477201905001628.

Australian Mesozoic pterosaurs. A, Aussiedraco molnari (QM F10613; holotype) mandible in dorsal view. Scale = 1 cm. B, Mythunga camara (QM F18896; holotype) partial skull and mandible in left lateral view. Scale = 5 cm. C, Thapunngaka shawi (KK F494; holotype) mandible in left lateral view. Scale = 5 cm. D, Ferrodraco lentoni (AODF 0876; holotype [part]) partial skull and mandible in left lateral view. Scale = 5 cm.

Holotype skull (IVPP V17083) of Guidraco venator on display at the Paleozoological Museum of China.

Figure 1: Reconstruction of the skull of Bellusaurus sui from the Middle-Late Jurassic Shishugou Formation of Xinjiang, China. This reconstruction is a composite based on isolated holotypic and referred material. (A) Right lateral view. (B) Dorsal view. Holotypic elements are indicated in blue and referred elements are in green.

Photograph of the skulls NHMD 164741 and NHMD 164758. (A) NHMD 164741 in left lateral view. (B) NHMD 164758 in left lateral view.

Known skull material of Kuru kulla (gen. et sp. nov. Napoli et al. 2022) - premaxilla, dentary, surangular, lacrimal, and teeth - shown with a speculative restoration of the remainder of the skull based on the related taxon Velociraptor mongoliensis. Known skull material is shown in light grey and labeled; unknown parts of the skull are shown in dark grey.

Photos of caudodorsal part of the skull of Yunganglong datongensis (SXMG V 00001). (A)-Right lateral view. (B)-Dorsal view. (C)-Caudal view. Scale bar = 10 cm.

Illustration of the skull of Abrosaurus with known remains in grey