Full reference: P. C. Sereno. 1986. Phylogeny of the bird-hipped dinosaurs (order Ornithischia). National Geographic Research 2(2):234-256
Parent taxon: Ankylopollexia according to A. O. Fonseca et al. 2024
See also Benton 1990, Bertozzo et al. 2025, Butler et al. 2008, Galton 2009, Gasulla et al. 2015, Herne et al. 2019, Magyar et al. 2026, McDonald 2012, McDonald et al. 2010, McDonald et al. 2010, Norman 2004, Norman 2014, Sancarlo et al. 2025, Sereno 1986, Sereno 1997, Sereno 1998, Sereno 1999, Shibata et al. 2015, Verdú et al. 2021 and Wang et al. 2017
Sister taxa: Bayannurosaurus, Camptosauridae, Camptosaurus, Iguanodon, Neoiguanodontia
Subtaxa: Calvarius Cumnoria Dakotadon Delapparentia Hadrosauriformes Hippodraco Iguanacolossus Istiorachis Lanzhousaurus Magnamanus Napaisaurus Paulodon Riabininohadros Theiophytalia
Ecology: ground dwelling herbivore