Crétacé

New wing skeleton of Forfexopterus (SDUST-V1003) from Jiufotang Formation of Early Cretaceous Jehol Biota in Jianchang, western Liaoning, northeastern China. Abbreviations: ca, carpus; co, coracoid portion; hu, humerus; mc, metacarpals I–IV; mdI–III, manual digits I–III; pt, pteroid; ra, radius; sc, scapular portion; ul, ulna; wp1–4, wing phalanges 1–4.

Ningchengopterus liuae, early Cretaceous of China. digital.

Bakonydraco galaczi gen. et sp. nov.MTMGyn/3, Iharkút, Bakony Mts., Hungary, Csehbánya Formation, Santonian (Upper Cretaceous). Mandible in dorsal (A, B), ventral (C, D), and lateral (E, F) views.

Aralazhdarcho bostobensis, ZIN PH 57/43, a proximal fragment of a left humerus in proximal (a), ventral (b), anterior (c), dorsal (d), and posterior (e) views. This specimen is from the Shakh Shakh II locality in the northeasten Aral Sea region of Kazakhstan; Bostobe Formation, Upper Cretaceous (Santonian – lower Campanian). Abbreviations: h, humeral head; pf, pneumatic foramen; uc, ulnar crest. Scale bar is 10 mm.

Azhdarchoid pterosaur Kariridraco dianae gen. et sp. nov. holotype (MPSC R 1056) from Lower Cretaceous of Northeastern Brazil. Skull in right lateral view. Photograph (A1), interpretative drawing (A2). Dark grey areas indicate remains of the carbonate matrix still attachaed to the skull.

Abelisaurid theropod Kryptops palaios gen. et sp. nov. MNN GAD1−1 from the Lower Cretaceous Elrhaz Formation of Niger. Left maxilla in lateral view; stereopair (A) and line drawing (B). Cross−hatching indicates broken bone; dashed lines indicate estimated edges.

Hypothetical reconstruction of the Late Cretaceous abelisaurid Elemgasem nubilus.

Riojavenatrix: "La Rioja huntress" Early Cretaceous, Europe

Left maxilla (A) and left dentary (B) of carcharodontosaurid theropod Kelmayisaurus petrolicus Dong, 1973 (IVPP V 4022, China, Lianmugin For− mation, Lower Cretaceous). Photographs in lateral (A1, B1), medial (A2, B2), ventral (A3), and dorsal (B3) views. Scale bars 5 cm. Designation “d” refers to dentary tooth, designation “m” refers to maxillary tooth position. Dorsal view of dentary shows tooth row only.

Closeup of the camellate pneumaticity inside the vertebrae of Vectiraptor greeni, from the Early Cretaceous of the Isle of Wight, UK. Photo by Nick Longrich.

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.

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.

Life reconstruction of the Late Cretaceous south american paravian, Overoraptor chimentoi

Forearm and hand of Machairasaurus leptorhynchos Longrich et al. 2010 (Dinosauria: Theropoda: Oviraptoridae: Ingeniinae) from the Late Cretaceous Djadokhta Formation beds of Bayan Mandahu, Inner Mongolia, China. Digital photography and editing by Nick Longrich

Alvarezsauridae gen. et sp. indet., posterior caudal vertebrae. Dzharakuduk, Uzbekistan; Bissekty Formation, Upper Cretaceous (Turonian). a-e, ZIN PH 2441/16, two vertebrae preserved in articulation, in anterior (a), dorsal (b), posterior (c), lateral (d), and ventral (e) views. f-j, ZIN PH 2442/16, vertebra missing ventral part of the centrum, in dorsal (f), lateral (g), ventral (h), anterior (i), and posterior (j).

Ceratonykus oculatus, Late Cretaceous of Mongolia. Digital.