Alternative spelling: Rodentii
Parent taxon: Simplicidentata according to R. J. Asher et al. 2005
See also Ameghino 1894, Asher and Helgen 2010, Becker et al. 2010, Carroll 1988, Flower 1883, Flower and Lydekker 1891, Gadow 1898, Gregory 1910, Hay 1902, Hooker 1986, Jaekel 1911, Kramarz et al. 2010, Lambe 1908, Leidy 1873, Madsen et al. 2001, McKenna 1975, Nowak 1991, Shockey et al. 2009, Shoshani et al. 1989, Tabuce et al. 2005, Vianey-Liaud et al. 2014, Waddell et al. 2001, Waddell et al. 1999, Wible et al. 2007 and Wilson and Reeder 2005
Sister taxa: Eomylus, Haplodontidae, Nikolomylus, Palaeomylus
Subtaxa: Alagomyidae Allactagidae Allomyidae Anomalomyidae Anomaluroidea Aplodontoidea Archetypomyidae Callodontomys Castorimorpha Cavina Cercolabidae Conilurus Cricetidae Ctenohystrica Cylindrodontidae Dolosimus Downsimys Echinomyidae Ectropomys Entoptychidae Epeiromys Eryomyidae Eryomyina Florentiamyidae Gliroidea Homocentrus Hystricognatha Ischyromyidae Ischyromyiformes Ivanantonia Megacricetodontidae Muriformia Mylagaulidae Myodonta Myomorpha Pairomys Paramyidae Petauristidae Pipestoneomyidae Protrogomorpha Pseudomys Quercymys Remyidae Sciurognathi Sciuroidea Sciuromorpha Siphneidae Taeniodus Theridomyoidea Yuomyidae Zamoramys Zelomyidae
Ecology: ground dwelling herbivore