What does the word Xenarthra mean?
Definition of Xenarthra : a suborder or other division of Edentata comprising the American anteaters, armadillos, sloths, and usually the extinct ground sloths.
What is the order Xenarthra?
TherapsidXenarthra / OrderTherapsida is a major group of eupelycosaurian synapsids that includes mammals, their ancestors and relatives. Wikipedia
Is Xenarthra extinct?
Extinct xenarthrans include the glyptodonts, pampatheres and ground sloths. Xenarthrans originated in South America during the Paleocene about 59 million years ago. They evolved and diversified extensively in South America during the continent’s long period of isolation in the early to mid Cenozoic Era.
What is a Edentate animal?
edentate. noun. Definition of edentate (Entry 2 of 2) : any of an order (Edentata) of mammals having few or no teeth and including the sloths, armadillos, and New World anteaters and formerly also the pangolins and the aardvark.
Do Edentata have teeth?
There are no teeth; and although the tongue is long and worm-like, it is not extensile.
When did the Xenarthra live?
Xenarthrans are known only from the Western Hemisphere and arose in South America during the Paleocene Epoch (65.5 million to 55.8 million years ago).
Are sloths Xenarthra?
Armadillos, sloths, and anteaters belong to the mammalian lineage Xenarthra.
Which reptile is an Edentate?
Sloths, armadillos, and anteaters are edentates. 1.
How do you say Zeppelin?
Break ‘zeppelin’ down into sounds: [ZEP] + [UH] + [LIN] – say it out loud and exaggerate the sounds until you can consistently produce them.
Is Edentata Polyphyletic?
Superorder Xenarthra. Xenarthrans were previously classified in an order termed Edentata, found to be polyphyletic and that also included ant-eating Pangolins.
What is the Xenarthra?
Together, the living families and extinct families constitute the Xenarthra. Xenarthrans are a small group of insectivores and herbivores of small to medium body size (up to around 60 kg). In the past however, xenarthrans were much more diverse and numerous.
What do all xenarthrans have in common?
Because of their shared ancestry, all xenarthrans have certain things in common. The name Xenarthra, as we’ve found, refers to the animals’ uniquely jointed spines. We’ve also found that all xenarthrans are placental mammals. But there are several other xenarthran characteristics.
What is the relationship between Xenarthra and cingulata?
Evolutionary relationships. Whatever the rank, Xenarthra is now generally considered to be divided into two orders: Cingulata, which contains the armadillos; and Pilosa, which contains the Vermilingua (anteaters) and Folivora (sloths; previously known as Tardigrada or Phyllophaga).