ammonites
Caudipteryx Ji et al. 1998 (coelurosaur)

Reptilia - Dinosauria

Full reference: Q. Ji, P. J. Currie, M. A. Norell and S.-A. Ji. 1998. Two feathered dinosaurs from northeastern China. Nature 393:753-762

Parent taxon: Oviraptorosauria according to P. Senter et al. 2004

Sister taxa: Avimimidae, Caenagnathidae, Caenagnathoidea, Caudipterygidae, Elmisaurus, Incisivosaurus, Ingeniidae, Microvenator, Ningyuansaurus, Oviraptoridae, Oviraptoroidea, Protarchaeopteryx

Subtaxa: Caudipteryx dongi, Caudipteryx zoui

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Ecology: ground dwelling omnivore