Reptilia - Dinosauria - Ornithomimidae
Invalid subtaxa: Dromiceiomimus Russell 1972, Ornithomimus minutus Marsh 1892 [nomen dubium], Ornithomimus sedens Marsh 1892 [nomen dubium], Struthiomimus sedens Marsh 1892 [nomen dubium], Troodon minutus Marsh 1892 [nomen dubium]
Full reference: O. C. Marsh. 1890. Description of new dinosaurian reptiles. The American Journal of Science, series 3 39:81-86
Parent taxon: Ornithomimidae according to P. J. Makovicky et al. 2004
Sister taxa: Anserimimus, Archaeornithomimus, Deinocheirinae, Gallimimus, Garudimiminae, Hopiichnus, Magnoavipes, Ornithomimidorum, Ornithomiminae, Qiupalong, Sinornithomimus
Subtaxa: Ornithomimus edmontonicus, Ornithomimus grandis, Ornithomimus velox
Type: Ornithomimus velox
Ecology: ground dwelling herbivore-omnivore