Infraorder Hystricognathi Tullberg 1899 (rodent)
Parent taxon: Hystricomorpha according to R. Sostillo et al. 2014
See also Arnal et al. 2014, Arnal and Vucetich 2015, Carroll 1988, Coster et al. 2010, Jaekel 1911, Kramarz 2001, Kramarz et al. 2010, Madozzo-Jaén and Pérez 2017, McKenna and Bell 1997, Montgelard et al. 2002, Nowak 1999, Patterson and Wood 1982, Pérez et al. 2012, Pérez and Vucetich 2011, Turvey et al. 2015, Vucetich et al. 2014, Vucetich and Verzi 1996, Vucetich et al. 2010 and Wilson and Reeder 2005
Sister taxa: Ctenodactyloidea, Thryonomyoidea, Coendidae, Paradoxomyidae, Viscacidae, Pseudoneoreomys
Subtaxa: Bathyergomorpha Bugtimys Caviomorpha Diatomyidae Gaudeamuridae Hodsahibia Hystricidae Phiomorpha Protophiomyinae Tufamyidae
Ecology: ground dwelling herbivore