Edentata or Xenarthra (Armadillos, Anteaters, and Sloths)
- Anteaters
- Giant Anteaters
- Giant Anteater - Myrmecophaga tridactyla
- Pygmy Anteaters
- Silky or Pygmy Anteater - Cyclopes didactylus
- Tamanduas
- Collared Anteater, Southern Tamandua - Tamandua tetradactyla
- Northern Tamandua - Tamandua mexicana
- Armadillos
- Armadillos
- Giant Armadillos
- Giant Armadillo - Priodontes maximus
- Hairy Armadillos
- Andean Hairy Armadillo - Chaetophractus nationi
- Big Hairy Armadillo - Chaetophractus villosus
- Little Hairy Armadillo - Chaetophractus vellerosus
- Long-nosed Armadillos
- Brazilian Lesser Long-nosed Armadillo - Dasypus septemcinctus
- Greater Long-nosed Armadillo - Dasypus kappleri
- Hairy Long-nosed Armadillo - Dasypus pilosus
- Nine Banded Armadillo - Dasypus novemcinctus
- Northern Lesser Long-nosed Armadillo - Dasypus sabanicola
- Southern Lesser Long-nosed Armadillo - Dasypus hybridus
- Naked-tailed armadillos
- Chacoan Naked-tailed Armadillo - Cabassous chacoensis
- Greater Naked-tailed Armadillo - Cabassous tatouay
- Northern Naked-tailed Armadillo - Cabassous centralis
- Southern Naked-tailed Armadillo - Cabassous unicinctus
- Pichis
- Six Banded Armadillos
- Six Banded Armadillo - Euphractus sexcinctus
- Three Banded Armadillos
- Brazilian Three-banded Armadillo - Tolypeutes tricinctus
- Southern Three-banded Armadillo - Tolypeutes matacus
- Pichiciegos
- Fairy Armadillos
- Greater Fairy Armadillo - Chlamyphorus retusus
- Pink Fairy Armadillo - Chlamyphorus truncatus
- Megalonychid Sloths
- Two-toed Sloths
- Hoffman's or Two-toed Sloth - Choloepus hoffmanni
- Linnaeus' Two-toed Sloth - Cholopus didactylus
- Three-toed Sloths
- Brown-throated Sloth - Bradypus variegatus
- Maned Sloth - Bradypus torquatus
- Three-toed Sloth - Bradypus tridactylus