Sloth 38-V
MAMMALIA
Eutheria
 
 
The author is holding a sloth in Peru.



Chapter Outline
  1. Description of Mammalia
  2. Classification of Mammalia
  3. Prototheria
  4. Metatheria
  5. Eutheria
  6. Afrotheria
  7. Laurasiatheria
  8. Cetartiodactyla
  9. Carnivora
  10. Euarchontoglires
  11. Primates
  12. Hominidae

Tree
NCBI Tree | Paleo Tree



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Eutheria is divided into three main groups: Afrotheria, Laurasiatheria and Euarchontoglires. Those will be discussed in following pages of this chapter. There is one order of eutherian mammals that does not fit into any of these groups, which will be the focus of this page: Xenarthra, which includes the sloths, anteaters and armadillos.

XENARTHRA (EDENTATA) 

Much like in the case of marsupials, there is only one species of edentate native to the U.S.: The Nine-Banded Armadillo (Dasypus novemcinctus).

Four living families: Bradypodidae (Three-Toed Sloths), Choleopodidae (Two-Toed Sloths), Dasypodidae (Armadillos), and Myrmecophagidae (Anteaters).

  • FAMILY DASYPODIDAE - ARMADILLOS
    • Nine-Bandad Armadillo (Dasypus novemcinctus) - Widespread in the Southeast, Omaha Zoo
    • Yellow (Six-Banded) Armadillo (Euphractus sp.) - (Memphis Zoo, Philadelphia Zoo)
    • Screaming Hairy Armadillo (Chaetophractus vellerosus) - Omaha Zoo - 2016
    • Large Hairy Armadillo (Chaetophractus villosus) - Omaha Zoo - 2016
    • Three-Banded Armadillo (Tolypeutes matacus) - Omaha Zoo - 2021
  • FAMILY BRADYPODIDAE - THREE-TOED SLOTHS
    • Brown-Throated Sloth (Bradypus variegatus) - Peru - 1997, Dallas World Aquarium - NOAH
  • FAMILY MEGALONYCHIDAE - TWO-TOED SLOTHS
    • Linnaeus' Two-Toed Sloth (Choloepus didactylus) - Omaha Zoo - 2006 - NOAH
    • Hoffman's Two-Toed Sloth (Choloepus hoffmanni) - Omaha Zoo - 2016
  • FAMILY MYRMECOPHAGIDAE - ANTEATERS
    • Giant Anteater (Myrmecophaga tridactyla) - SCZ - 2018
    • Tamandua (Tamandua tetradactyla) - SCZ - 2006
  • FAMILY MEGATHERIIDAE - GIANT GROUND SLOTHS [EXTINCT]
    • Giant Ground Sloth (Megatherium americanum) [Extinct] - Field Museum - 2014
  • FAMILY MYLODONTIDAE - GIANT GROUND SLOTHS [EXTINCT]
    • Giant Ground Sloth (Paramylodon harlani) [Extinct] - Field Museum - 2014
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