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†superfamily Therizinosauroidea Russell and Dong 1994 (coelurosaur)

Reptilia - Avetheropoda

PaleoDB taxon number: 64125

Synonyms: Segnosauria Barsbold and Perle 1980 (no. 57459), Segnosaurischia Dong 1992 (no. 58887)

Full reference: D. A. Russell and Z.-M. Dong. 1994. The affinities of a new theropod from the Alxa Desert, Inner Mongolia, People's Republic of China. Canadian Journal of Earth Sciences 30(10-11):2107-2127

Parent taxon: Therizinosauria according to H. Pu et al. 2013

Sister taxa: Erlikosauridae, Erlikosaurus, Falcarius, Jianchangosaurus, Lingyuanosaurus, Saurexallopus

Subtaxa: Alxasauridae, Alxasaurus, Beipiaosaurus, Dendroolithidae, Martharaptor, Therizinosauridae

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Ecology: ground dwelling herbivore