Coelurosauria - Paleontology and Geology Glossary

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Dinosaur and Paleontology Dictionary

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COELUROSAURIA

Coelurosaurs are a group of theropods that are closely related to birds (and includes the birds). Coelurosaurs have long arms, and most have hinge-like ankles. T. rex, Deinonychus, and Velociraptor are examples of coelurosaurs. Parent clade: Tetanurae

The following are some of the major groups of Coelurosaurs: Coelurosauria

Tyrannosaurids (including T. rex and Albertosaurus)
Ornithomimidae (bird mimics, including Ornithomimus and Gallimimus)
Maniraptora
- Dromaeosaurs - the smartest dinosaurs - the raptors, including Caudipteryx, Deinonychus, Protarchaeopteryx, Sinosauropteryx, Unenlagia, Utahraptor, and Velociraptor
- Troodontids - including Troodon and Sinornithoides
- Therizinosaurs - including Therizinosaurus, Alxasaurus, Erlikosaurus, and Segnosaurus
- Oviraptors - including Oviraptor
- Aves - the birds

Tyrannosaurids (giant coelurosaurs)
ALBERTOSAURUS	TYRANNOSAURUS rex

Ornithomimidae (bird mimics)
GALLIMIMUS	ORNITHOMIMUS

Maniraptora ("seizing hands" - birds and their relatives)
Dromaeosaurs (large-brained dinosaurs with sickle-like toe claws - the "raptors")
CAUDIPTERYX	DEINONYCHUS	PROTARCHAEOPTERYX
SINOSAUROPTERYX	UTAHRAPTOR	VELOCIRAPTOR
?? (similar to but more primitive than Dromaeosaurs, with narrower feet)	Troodontids (large-brained dinosaurs)	Oviraptors (small, nurturing parents)
MEGARAPTOR	Troodon and Sinornithoides	OVIRAPTOR
Therizinosaurs (big and clawed)	Aves (birds)
Therizinosaurus, Alxasaurus, Erlikosaurus, and Segnosaurus	Birds