Coelurosauria

Coelurosaurs Temporal range: Middle Jurassic–Present, 165–0 Ma[1] PreꞒ Ꞓ O S D C P T J K Pg N Possible Early Jurassic record[2]
Six exemplar coelurosaurs (top left to bottom right): Tyrannosaurus, Sinosauropteryx, Deinonychus, Archaeopteryx, "Ronaldoraptor", and a house sparrow
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	Theropoda
Clade:	Avetheropoda
Clade:	Coelurosauria von Huene, 1914
Included taxa
†Aratasaurus †Bicentenaria †Coelurus †Ornitholestes †Tanycolagreus †Vayuraptor †Xinjiangovenator †Zuolong †Tyrannosauroidea †Compsognathidae (possibly polyphyletic) †Ornithomimosauria Maniraptora Possible coelurosaurs †Megaraptora †Asiamericana †Aniksosaurus †Chilantaisaurus †Gasosaurus †Gualicho †Iliosuchus †Juravenator †Lourinhanosaurus †Nuthetes †Phaedrolosaurus †Richardoestesia †Sciurumimus †Shanyangosaurus †Shaochilong †Teinurosaurus

Coelurosauria (/sɪˌljʊərəˈsɔːri.ə/;^[3][4] from Greek, meaning "hollow-tailed lizards") is the clade containing all theropod dinosaurs more closely related to birds than to carnosaurs.

Coelurosauria is a subgroup of theropod dinosaurs that includes compsognathids, tyrannosaurs, ornithomimosaurs, and maniraptorans; Maniraptora includes birds, the only known dinosaur group alive today.^[5]

Most feathered dinosaurs discovered so far have been coelurosaurs. Philip J. Currie had considered it likely and probable that all coelurosaurs were feathered.^[6] However, several skin impressions found for some members of this group show pebbly, scaly skin, indicating that feathers did not completely replace scales in all taxa. In the past, Coelurosauria was used to refer to all small theropods, but this classification has since been amended.