Class Mammalia Linnaeus, 1758 - mammals Order Rodentia Bowdich, 1821 - rodents Suborder Hystricognathi Tullberg, 1899 see Infraorder Hystricognathi Tullberg, 1899 Family Octodontidae Waterhouse, 1840 - octodonts Genus Tympanoctomys Yepes, 1941 1 Tympanoctomys barrerae (Lawrence, 1941)