Dromaeosauridae

Size of Austroraptor cabazai compared to a human, a species of Dromaeosaurid Unenlagiinae who lived during the Cretaceous period in Argentina, more precisely in the Allen Formation.

Holotype of Jian changmaensis (GSGM-D050), an articulated partial left pectoral girdle (scapulocoracoid) and forelimb (humerus, radius, and ulna). A, silhouette of generalized microraptorine dromaeosaurid theropod (courtesy Scott Hartman) showing skeletal elements preserved; B, photograph of specimen as preserved, exposed primarily in dorsomedial (scapulocoracoid), caudodorsal (humerus), and dorsal (radius and ulna) views; C, interpretive line drawing of B; D, detail photograph of scapulocoracoid and proximal end of humerus in caudodorsal view, showing supracoracoid fenestra and other structures; E, interpretive line drawing of D. Abbreviations: ac, acromion; bc, bicipital crest; C, coracoid; cr, caudal ridge; dep, dorsal epicondyle; dpc, deltopectoral crest; dr, dorsal ridge; ed, epicondylar depression; fs?, fossa for M. supinator?; H, humerus; hh, humeral head; lp, lateral process; ‘mb’, ‘medial bar’; op, olecranon process; R, radius; S, scapula; scb, scapular blade; scf, supracoracoid fenestra; sta, sternal articulation; U, ulna.

Montage of six dinosaur fossils: (clockwise from top left) Deinonychus antirrhopus, Buitreraptor gonzalezorum, Velociraptor mongoliensis, Microraptor gui, Halszkaraptor escuilliei, and Zhenyuanlong suni. This is a collection of six different works already found in Wikimedia Commons: File:Deinonychus FMNH.jpg File:Buitreraptor FMNH.jpg File:Velociraptor Wyoming Dinosaur Center.jpg File:MicroraptorGui-PaleozoologicalMuseumOfChina-May23-08.jpg File:Halszkaraptor escuilliei.jpg File:Zhenyuanlong.jpg All of them are either under a free license already in Wikimedia Commons or in the public domain

Montage of six dinosaur fossils: (clockwise from top left) Deinonychus antirrhopus, Buitreraptor gonzalezorum, Velociraptor mongoliensis, Microraptor gui, Halszkaraptor escuilliei, and Zhenyuanlong suni. This is a collection of six different works already found in Wikimedia Commons: File:Deinonychus FMNH.jpg File:Buitreraptor FMNH.jpg File:Velociraptor Wyoming Dinosaur Center.jpg File:MicroraptorGui-PaleozoologicalMuseumOfChina-May23-08.jpg File:Halszkaraptor escuilliei.jpg File:Zhenyuanlong.jpg All of them are either under a free license already in Wikimedia Commons or in the public domain

Montage of six dinosaur fossils: (clockwise from top left) Deinonychus antirrhopus, Buitreraptor gonzalezorum, Velociraptor mongoliensis, Microraptor gui, Halszkaraptor escuilliei, and Zhenyuanlong suni. This is a collection of six different works already found in Wikimedia Commons: File:Deinonychus FMNH.jpg File:Buitreraptor FMNH.jpg File:Velociraptor Wyoming Dinosaur Center.jpg File:MicroraptorGui-PaleozoologicalMuseumOfChina-May23-08.jpg File:Halszkaraptor escuilliei.jpg File:Zhenyuanlong.jpg All of them are either under a free license already in Wikimedia Commons or in the public domain

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

Figure 1: The holotype of the large-bodied, short-armed Liaoning dromaeosaurid Zhenyuanlong suni gen et. sp. nov. (JPM-0008).

A diagram of the dromaeosaurid dinosaur Pyroraptor olympius with selected fossil elements that can be reliably scaled using measurements given by Allain & Taquet (2000) to produce a realistic estimate of the taxon's size and proportions in life. This silhouette is based on the supposition of the missing elements of Pyroraptor's skeleton having fairly generalized dromaeosaurid proportions.