holotype

Holotype skull of Wannanosaurus yansiensis on display at the Paleozoological Museum of China.

Holotype dome of Acrotholus on display at the Royal Ontarion Museum, Toronto

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.

Holotype of Transylvanosaurus platycephalus, LPB (FGGUB) R.2070, a partial skull comprising the articulated basicranium and both frontals. Scale bar: 1 cm.

Holotype (MTM V 2009.192.1) of Ajkaceratops kozmai .mw-parser-output .smallcaps{font-variant:small-caps}Ősi et al., 2010 (Dinosauria: Ceratopsia), fused rostral and premaxillae, in lateral view, length of scale bar = 1 cm.

Figure 1 Right maxilla of Matheronodon provincialis gen. et sp. nov. (MMS/VBN-02–102; holotype) in dorsal (a), lateral (b), medial (c), and ventral (d) views. (e) Close-up of the second and third maxillary crowns.

DMNH 2021-05-02, holotype left dentary of Ampelognathus coheni, photos and labeled outline drawings in A, lateral; B, medial; C, dorsal; D, ventral; E, anterior; and F, posterior views. Abbreviations: a#, alveolus and numerical position in tooth row; anf, angular facet; cof, coronoid facet; cop, coronoid process; d6, dentary tooth 6 base; ds, dentary symphysis; mc, Meckelian canal; mg, Meckelian groove; pdd, dorsal facet for predentary; pdv, ventral facet for predentary; saf, surangular facet. Gray fill indicates recessed surfaces. Stippling indicates visible sediment. Cross-hatching indicates broken bone surface. Scale bars equal 5 mm.

Trinisaura skeletal diagram with the remains of the holotype

Photograph of the right dentary of the holotype (MQ98-II-1) of the hadrosauroid Portellsaurus sosbaynati (Santos-Cubedo et al., 2021). A is the labial view; B is the lingual view; C is the occlusal view; D is a 2x enlargement. Scale bars equal 10 centimetres.

Braincase of WSC 10058, holotype of Ornatops Braincase of Ornatops incantatus in digital 3D model in right lateral (A and C) and left lateral (D and F) views, with enlarged images of the right (B) and left (E) auditory regions. Credit: McDonald AT, Wolfe DG, Freedman Fowler EA, Gates TA. 2021. A new brachylophosaurin (Dinosauria: Hadrosauridae) from the Upper Cretaceous Menefee Formation of New Mexico. PeerJ 9:e11084 https://doi.org/10.7717/peerj.11084

The hadrosaurid dinosaur Wulagasaurus dongi gen. et sp. nov. from the Upper Cretaceous Yuliangze Formation at the Wulaga quarry, China. A. Holotype GMH W184, right dentary in lateral (A1) and medial (A2) views. B. GMH W217, right dentary in lateral (B1) and medial (B2) views.

The holotype skeleton of Kamuysaurus japonicus gen. et sp. nov. (b) Reconstructed skeleton, showing recovered elements. Selected postcranial elements: cervical vertebrae (atlas, axis, and fourth and twelfth cervicals) in left lateral view (c), dorsal vertebrae (first, seventh, and sixteenth dorsals) in left lateral view (d), caudal vertebrae (anterior, middle, and posterior caudals) in left lateral view (e), left scapula (f) and coracoid (g) in lateral view, right sternum in ventral view (h), left humerus in anterior view (i), right ulna and radius in medial view (j), right manus in dorsal view (k), right pelvis in lateral view (l), right femur in anterior view (m), right tibia in anterior view (n), right fibula in lateral view (o), right astragalus and calcaneum, articulated positioned with tibia (p), and right pes in dorsal view (q). All scales are 10 cm except 1 m scale for (b). Abbreviations; ac, acromion process; ast, astragalus; cal, calcaneum; dpc, deltopectoral crest; fi, fibula; icg, intercondylar groove; il, ilium; is, ischium; ltr, lesser trochanter; mc2, metacarpal II; mc5, metacarpal V; mt2, metatarsal II; mt4, metatarsal IV; nc, neurocentrum; od, odontoid; olp, olecranon process; pc, pleurocentrum; pu, pubis; ra, radius; ti, tibia; ul, ulna; vp, ventral process.

Graphite drawing with digital retouches of the holotype (UCMP 152028) of Adelolophus hutchisoni. (A) lateral view; (B) medial view; (C) dorsolateral view. The scale bar is equal to 10 centimeters. Reference: Figure 9.2 from Gates et al. (2014).[1]

Holotype maxilla of the lambeosaurine hadrosaurid Ajnabia odysseus from the Late Cretaceous (late Maastrichtian) of Sidi Chennane, Morocco

Right premaxilla of Eotrachodon orientalis (holotype MSC 7949). (A) Dorsal view. (B) Rostral view. (C) Lateral view. (D) Rostral view of rostral layer of premaxillary denticles. (E) Ventral view of premaxillary denticles. (F) Ventral view. (G) Medioventral view.

Photograph of the right dentary of the holotype (MNHAH D1-033516) of the hadrosaurid Yamatosaurus izanagii (Kobayashi et al. 2021). A is the lateral view; B is the medial view; C is the dorsal view; D is the ventral view; E is the anterior view. The white numbers (B) show the positions of nutrient foramina.