Class Mammalia Linnaeus, 1758 - mammals Order Rodentia Bowdich, 1821 - rodents Suborder Hystricognathi Tullberg, 1899 see Infraorder Hystricognathi Tullberg, 1899 Family Erethizontidae Bonaparte, 1845 - New World porcupines Genus Echinoprocta Gray, 1865 - Upper Amazonian porcupine see Genus Coendou Lacépède, 1799 Echinoprocta rufescens (Gray, 1865) - Upper Amazonian porcupine see Coendou rufescens (Gray, 1865)