Echimyidae Hystricomorpha Myophiomys Tsaganomys Phiocricetomys Sivacanthion Bathyergoides Elmerimys Felou gundi Cephalomyidae Mzab gundi Petromus Chapattimyidae Gundi Cane rat Ctenodactylomorphi Laotian rock rat Diatomys Gobiomyidae Cephalomys Ctenodactylus Brush-tailed porcupine Phiomyoides Birbalomys Diatomyidae Cryptomys Bathyergus Long-tailed porcupine Cape mole-rat Silvery mole-rat Hystrix (mammal) Naked mole-rat Speke's pectinator Fukomys List of South American animals extinct in the Holocene 2019 in paleomammalogy