Class Mammalia Linnaeus, 1758 - mammals Order Rodentia Bowdich, 1821 - rodents Suborder Hystricognathi Tullberg, 1899 see Infraorder Hystricognathi Tullberg, 1899 Family Chinchillidae Bennett, 1833 - viscachas and chinchillas Genus Chinchilla Bennett, 1829 - chinchillas Chinchilla lanigera Bennett, 1829 - long-tailed chinchilla