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         Xenarthra:     more books (38)
  1. The Biology of the Xenarthra
  2. Descriptions Of Two Extinct Mammals Of The Order Xenarthra From The Pleistocene Of Texas (1916) by Oliver Perry Hay, 2010-05-23
  3. Phylogeny of the Tardigrada (Mammalia, Xenarthra) and the Evolution of Locomotor Function in the Xenarthra. by Timothy J. Gaudin, 1993
  4. The armadillos (Mammalia, Xenarthra, Dasypodidae) of the Santa Cruz [An article from: Palaeogeography, Palaeoclimatology, Palaeoecology] by S.F. Vizcaino, M.S. Bargo, et all 2006-08-04
  6. First Tertiary land mammal from Greater Antilles: An early Miocene sloth (Xenarthra, Megalonychidae) from Cuba (American Museum novitates) by R. D. E MacPhee, 1994
  7. Armadillo: Charango, Placenta, Mammal, Family (biology), Order (biology), Xenarthra, Anteater, Sloth, Spanish language, Genus, Species, Nine-banded Armadillo
  8. Un gliptodonte (xenarthra, cingulata) de la localidad de chachagua, provincia de alajuela, Costa Rica.(Nota científica): An article from: Revista Geológica de América Central by Ana Lucía Valerio Z., César Alberto Laurito M., et all 2005-06-01
  9. Histology and ultrastructure of the fossil osteoderms of Glyptodon clavipes and Holmesina sp. (xenarthra: Cingulata)/ Histologia y ultraestructura de los ... An article from: Interciencia by Edwin Orlando Chavez-Aponte, Imeru Alfonzo-Hernandez, et all 2008-08-01
  10. Diet of Pleistocene Paramylodon harlani (xenarthra: mylodontidae): review of methods and preliminary use of carbon isotopes.: An article from: The Texas Journal of Science by Dennis R., Jr. Ruez, 2005-11-01
  11. Xenarthrans: Armadillos, Pilosans, Xenarthra, Sloth, Edentulism, Nine-Banded Armadillo, Pilosans of the Caribbean, Anteater, Megalonychidae
  12. Xenarthra: Glyptodontidae, Thalassocnus, Glyptotherium, Doedicurus, Cingulata, Cabassous, Euphractus sexcinctus, Dasypus, Dasypus novemcinctus (German Edition)
  13. Xenarthra: An entry from Thomson Gale's <i>Grzimek's Animal Life Encyclopedia</i> by Virginia L., PhD Naples, 2004
  14. A translocation experiment for the conservation of maned sloths, Bradypus torquatus (Xenarthra, Bradypodidae) [An article from: Biological Conservation] by A.G. Chiarello, D.J. Chivers, et all 2004-08-01

1. Xenarthra - Wikipedia, The Free Encyclopedia
The superorder xenarthra is a group of placental mammals (infraclass Eutheria), extant today only in the Americas. The origins of the order can be traced
From Wikipedia, the free encyclopedia
Jump to: navigation search Xenarthra
Fossil range: Middle Paleocene - Recent
Hoffmann's Two-toed Sloth
Scientific classification Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Eutheria
Superorder: Xenarthra
Orders and suborders
See text for more details The superorder Xenarthra is a group of placental mammals (infraclass Eutheria), extant today only in the Americas. The origins of the order can be traced back as far as the early Tertiary (about 60 million years ago, shortly after the Mesozoic era ). The presence of these animals in North America is explained by the Great American Interchange It includes the anteaters sloths , and armadillos . In the past, these families were classified together with the pangolins and Aardvark as the order Edentata (meaning toothless, because the members do not have front incisor teeth or molars, or have poorly-developed molars). It was subsequently realized that Edentata was polyphyletic —that it contained unrelated families and was thus invalid by cladistic standards. Aardvarks and pangolins are now placed in individual orders, and the new order Xenarthra was erected to group the remaining families (which

2. ADW: Xenarthra: Classification
Overview of the order of armadillos, anteaters, and sloths from the Animal Diversity Web.
Overview News Technology Conditions of Use ... Home Kingdom Animalia Phylum Chordata Subphylum Vertebrata Class Sarcopterygii Order Xenarthra
Order Xenarthra

What do these icons mean?
The icons tell you what features are available for that taxon. Information Pictures Specimens Sounds Selecting an icon will take you directly to that feature. Scientific names for Aves taxonomy (family and below) are from The Howard and Moore Complete Checklist of the Birds of the World
About Us Special Topics Teaching ... Comment
Citation: Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed January 24, 2008 at
Sponsored in part by the Interagency Education Research Initiative, the Homeland Foundation and the

3. Xenarthra.Org - Home
xenarthra.Org offers a wide variety of information on sloths, their habitat, and their mammalian relatives.
Home Xenarthrans Sloths Rainforests ... Email Search
Prepare for a journey into the Amazonian rainforest! Xenarthra.Org is devoted to youth and adults all over the world looking for information about sloths and their relatives, the Xenarthrans. Here you will learn about present-day sloths, where we believe they came from, where they are found today, and their future. We strive to bring you the most accurate, up-to-date information available, and we invite feedback from our visitors on all aspects of our site. Please take a peek around and enjoy! The Pygmy Sloth! Thanks to National Geographic , fans all over the world have harkened to a new species of sloth, Bradypus pygmaeus . This creature, found on a tiny island off the coast of Panama in 2001, was featured in an article in the March 2006 issue of National Geographic . Check out video footage here Sister Site Purchased... We are (slowly, of course) developing Sloth.Biz as a sister site to Xenarthra.Org. This new site will contain multimedia, photos, and interviews relating to sloths. This website uses fairly up-to-date web coding. If you're using an older or outdated browser, we recommend that you download and install

4. Introduction To The Xenarthra
Anteaters, armadillos, and sloths are a group of eutherian mammals known as the xenarthra. They were once placed in the order Edentata and are still often
Introduction to the Xenarthra
anteaters, armadillos, and sloths
Anteaters, armadillos, and sloths are a group of eutherian mammals known as the Xenarthra. They were once placed in the order Edentata and are still often referred to as edentates , a word that means "toothless." Although xenarthrans such as anteaters are indeed toothless, the giant armadillo has as many as 100 teeth, more than almost any other mammal. Members of the mammalian group Edentata not only include the 31 living species of armadillos, true anteaters, and tree sloths, but also contain eight families of extinct ground sloths and armadillo-like animals. 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. They radiated into about a dozen families in South America, including not only the groups known today but also animals such as the extinct giant ground sloths and giant armored gylptodonts. Several groups of xenarthrans, mainly the ground sloths and armadillos, successfully crossed the Central American land bridge to North America when it formed during the Pliocene . Today, only one of these species, an armadillo (

5. Xenarthra
THE ORDER xenarthra Southern North America and South America is their distribution, and the xenarthrans consist of 29 species in four distinct families
Who knew Armadillos could leap?
Xenarthra Strange Jointed Mammals
(About 30 species.)
CLASSIFYING THE MAMMALS: Taxonomy is the scientific method of classifying the animals with specific names. Learn more about taxonomy and the grouping of the mammals on the Taxonomy Page and Mammal Chart
A Giant Anteater probes for his food.
THE ORDER XENARTHRA: Southern North America and South America is their distribution, and the Xenarthrans consist of 29 species in four distinct families: anteaters, sloths (two families - two and three-toed), and armadillos. Anteaters are toothless, sloths and armadillos lack incisors and canines but do have simple cheek teeth that lack enamel and grow continuously from the roots as the tops wear down. Armadillos have up to 100 such teeth.
Their skulls are elongated and the brain small and narrow. But other similarities seem difficult to come by. How could three such different-looking types of animals be related? It is in the vertebrae of the lumbar region where they have an extra articulation. It is a skeletal feature peculiar to this order, and "Xenarthra" means "strange joints."
Their specially strengthened backbone may have evolved from the defense posture that anteaters assume. If threatened, the animal stands erect on its hind legs and braces itself with its strong, heavy tail, forming a tripod. It then proceeds to lash out with its powerful arms, slashing with its formidable claws.

6. Xenarthrans - Order Xenarthra
Armadillos, sloths, and anteaters belong to the Order xenarthra, an ancient group of placental mammals that once roamed across Gondwanaland before the
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Animals / Wildlife
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    Xenarthrans (Order Xenarthra)
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    Description: Armadillos, sloths, and anteaters belong to the Order Xenarthra. Members of this group of mammals share the following characteristics:
    • unique joints in their backbone that provide extra strength and support when digging and burrowing few or no teeth small brain
    Xenarthrans comprise an ancient group of placental mammals that once roamed across Gondwanaland before the continents of the Southern Hemisphere separated into their present day configuration.

    7. Xenarthran --  Britannica Online Encyclopedia
    Britannica online encyclopedia article on xenarthran an ancient lineage of mammals comprising the armadillos (order Cingulata) and the sloths and anteaters
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    xenarthran (magnorder Xenarthra
    Page 1 of 4 an ancient lineage of mammals comprising the armadillos (order Cingulata) and the sloths and anteaters xenarthran... (75 of 631 words) To read the full article, activate your FREE Trial Close Enable free complete viewings of Britannica premium articles when linked from your website or blog-post. Now readers of your website, blog-post, or any other web content can enjoy full access to this article on xenarthran , or any Britannica premium article for free, even those readers without a premium membership. Just copy the HTML code fragment provided below to create the link and then paste it within your web content. For more details about this feature, visit our Webmaster and Blogger Tools page Copy and paste this code into your page var dc_UnitID = 14; var dc_PublisherID = 15588; var dc_AdLinkColor = '009900'; var dc_adprod='ADL'; var dc_open_new_win = 'yes'; var dc_isBoldActive= 'no';

    8. Order Xenarthra
    ORDER xenarthra. ARMADILLOS, SLOTHS, AND ALLIES. This Order seems to have developed in South America and only recently invaded North America.
    The Mammals of Texas - Online Edition ORDER XENARTHRA: ARMADILLOS, SLOTHS, AND ALLIES This Order seems to have developed in South America and only recently invaded North America. Its members are bizarre creatures and highly specialized in structure and habits. The toothless anteaters are provided with heavy claws to tear apart termite nests and a long, slender, protrusile, sticky tongue to capture the insects. The slow-moving, plant-eating sloths are tree dwellers, with a rudimentary tail and only two or three toes on each foot. In the large group of armadillos, the presence of a bony carapace is unique among mammals. The Order is divided into three families, all of which are restricted to Central and South America with the exception of one species, the nine-banded armadillo, which ranges north to the United States. Family Dasypodidae (armadillos) Nine-banded Armadillo Dasypus novemcinctus

    9. Order XENARTHRA
    Download an outline of this lecture as a Word Document or an ADOBE PDF document. Order xenarthra (formerly Edentata)
    Download an outline of this lecture as a Word Document or an ADOBE PDF document.
    Order XENARTHRA (formerly Edentata)
    anteaters, sloths and armadillos
  • xenarthrous vertebrae [fig 14.2] incorporation of caudal vertebrae into sacrum reduced to absent dentition, without enamel; low metabolic rates and low body temperatures [Fig. 14.1]
  • Families
    Tardigrada (sloths)
    • the two living sloths have traditionally been placed in the same family (Bradypodidae) because they have many characteristics in common, such as the following:
    Neotropical no tail, blocky skull

    xenarthra (Edentata), Philodota, and Tubulidentata all share a major structural trend, xenarthrans are first known from the Paleocene of South America

    11. Pictures Of The Order Of Edentates | Order Xenarthra Facts
    Explains everything about edentates, member of the xenarthra order and the family.
    Pictures and facts about the Edentates
    Even-toed ungulates Carnivores Cetaceans Bats ... Animal books Web
    Animals / Mammals / Xenarthra
    Order Xenarthra
    contains 4 families
    Bradypodidae (3 species) Megalonychidae (2 species) ... (4 species)
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    Animals living in the water Swim with manatees - harmful or helpful? maned three-toed sloth southern two-toed sloth ... silky anteater
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    Order : Xenarthra
    Including anteaters, armadillos and sloths. They were formerly classified as the order Edentata (meaning toothless) and put in the same order as the aardvark and pangolin s, until they discovered that the order was polyphyletic , meaning that unrelated species were seen as a group and was invalid. Now, anteaters, armadillos and sloths are in the order called Xenarthra which means "strange joints". It was named this way because they all have unique vertebral joint structure unlike any other mammal. The smallest member of the Xenarthra is the Silky anteater , the largest is the Giant anteater Image: photographer Malene Thyssen , Licensed under Attribution ShareAlike 2.5

    Armadillos are in the same order with anteaters and tree sloths (Edentata, or xenarthra). These three all came north over the Panama isthmus 3 million years
    Family Dasypodidae - Armadillos Dasypus novemcinctus - Nine-banded Armadillo NATIONAL WILDLIFE (?) - Of 20 species of armadillos, only one (the nine-banded) is found in the US. Unlike any other mammal, it produces four genetically identical offspring at almost every birth. Additionally, it can delay implantation until suitable conditions exist. Armadillos are in the same order with anteaters and tree sloths ( Edentata , or Xenarthra ). These three all came north over the Panama isthmus 3 million years ago, with the latter two disappearing about the time Man made his impact in North America, or about 10,000 years ago. The armadillo was only known to exist in Central America until a colony made it as far north as Texas in 1850. Then, in the swiftest migration known in mammalian history, the nine-banded armadillo raced through the Gulf States toward the Atlantic, reaching Florida in the late 1970's. Now, 30 million live in the southern US. Crossing small rivers, the armadillo has the ability to either swim across, or actually walk across the bottom of the river, emerging up to five minutes later on the other side. Armadillos dig dens in the ground and surface in late afternoons to feed. They have keen smell, but poor eyesight. Only the nine-banded and a few South American species have the trait of quadruple identical pups from the same fertilized egg. This increases the rate of pop success, since only one ovum per year occur. Delayed implantation can be as long as two years (the fertilized egg develops into a multiple-celled blastocyst and floats free in the uterus until favorable conditions exist. Numerous animals, like bear and many members of the weasel family can delay implantation for several months, but nothing like this.)

    13. Xenarthra Skulls
    The order xenarthra of placental mammals, formally the Edentada, contains approximately 30 species of anteaters, sloths and armadillos.
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    This order of placental mammals contains approximately 30 species of anteaters, sloths and armadillos. They range from the Pink Fairy Armadillo that weighs 3 ounces to the 132 pound Giant Armadillo. Although the this order's previous Latin name, Edentadia signifies toothlessness, only the anteater actually lacks teeth. In fact the Giant Armadillo, with a total of 80 to 100 teeth, has more teeth then almost any other mammal. Armadillos lack incisors and canines. The Armadillo's teeth lack enamel and are ever-growing and rootless Click on the price of any item to add it to your shopping cart. For more Information, Click Here Please Note that shipping charges quoted, are estimated. Actual shipping charges may be lower or higher. International Orders (other then the United States) will be contacted regarding Charges Prior to Shipping.

    14. Definition: Xenarthra From Online Medical Dictionary
    xenarthra. An order of new world mammals characterised by the absence of incisors and canines from among their teeth, and comprising the armadillos,

    15. Xenarthra
    The old name for this order, Edentata (= toothless ) has been replaced by the more appropriate term xenarthra. Among living species, only the anteaters

    Giant anteater
    Order Xenarthra: sloths, armadillos, and anteaters The old name for this order, Edentata (="toothless") has been replaced by the more appropriate term Xenarthra. Among living species, only the anteaters (superfamily Myrmecophagoidea) are toothless. All living species are New World mammals, the largest being the giant anteater Myrmecophaga tridactyla (shown at left), which reaches a length of 120 cm/3' 7" and a weight up to 40 kg/83 pounds. Xenarthra share the following characters: Females have a common urogenital duct; toes all strongly clawed; testes interior, between bladder and rectum; double posterior vena cava. Giant anteaters use a long, sticky tongue to capture the huge quantities of ants and termites. The huge front claws easily open concrete-hard termite mounds, and serve as effective weapons o self-defense.

    16. Xenarthra
    xenarthrans probably evolved in SouthAmerica, and this continent has been their traditional home, although some have migrated into North America.
    Xenarthra Xenarthrans probably evolved in SouthAmerica, and this continent has been their traditional home, although some have migrated into North America. Although these creatures did not radiate into arboreal insectivore niches as in RL (these niches already having been taken by the didelphids), they became quite succsessful as insectivorous ground-dwellers and burrowers. INSECTIPHAGIDAE (Pangodilloes)
    Spec's 'ant-eaters' are the dominant small insectivores of South America, and are clearly xenarthrans, possessing the clade's slow-growing, enamel-less teeth and xenarthrual articulation between their vertebrae (although insectiphags' backs are more flexible than other xenarthrans. However, these hedge-hog like creatures are not true myrmecophagids (the famliar ant-eaters of our home timeline), but a more generalized family that often mimics the pholidotes (pangolins) of RL. The first mammalogists to explore Spec's Panamanian Isthmus were startled to discover the pangodillo ( Echinomanis echinis ) a creature that at first glance appeared to be a pangolin - a scaled anteater. Not only did the creature possess razor-sharp blade-like 'spikes' instead of the flat but very tough scales of the homeworld pangolins, its mere existence in the New World, and simply

    17. Mammalia: Xenarthra - Nebengelenktiere
    Merkmale der Nebengelenktiere xenarthra (Bestimmungsübungen an Voegeln und Saeugern).
    Ord. Xenarthra Nebengelenktiere - Xenarthrans Mammalia John White
    Systematik 3 Gattungen mit 4 Arten:
    Myrmecophaga tridactyla
    Tamandua tetradactyla Mexikanischer Tamandua - Tamandua mexicana Cyclopes didactylus U.Ord. Faultiere - Pilosa 2 Gattungen mit 5 Arten: Fam. Dreifinger-Faultiere - Bradypodidae
    Dreifinger-Faultier - Bradypus tridactylus
    Kapuzenfaultier - Bradypus cuculliger Kragenfaultier - Bradypus torquatus
    Fam. Zweifinger-Faultiere - Choloepidae
    Zweifinger-Faultier, Unau - Choloepus didactylus Hoffmann-Zweifinger-Faultier - Choloepus hoffmanni
    8 Gattungen mit 20 Arten, darunter:
    Dasypus Tolypeutes Pridontes Cabossus Euphractina Chlamyphorina
    Last modified:

    18. Xenarthra - Wiktionary
    edit Proper noun. Wikipedia has an article on. xenarthra Wikipedia. xenarthra Retrieved from http//
    From Wiktionary
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    19. Order: Xenarthra
    Order xenarthra. Family Myrmecophagidae. LINK TO giant xenarthra are said to form an exclusively New World order (Walker 1991).
    You are in: Museum of Natural History Hall of Taxonomy Kingdom: Animalia Class: Mammalia ... Order: Xenarthra
    Citation: Website address (ie ), edited by Stanley L. Klos and volunteer editor's name, if any, listed at bottom - Carnegie, PA 1999-2006. We rely on volunteers to edit the sites on a continual basis. If you would like to edit this site please submit edits and  biographies in text form
    Order: Xenarthra
    Sloths, armadillos, and anteaters first appeared in the Lower Eocene period and currently distributed in North and South America. Anterior teeth lost and cheek teeth reduced to simple rootless pegs without enamel, or lost altogether in anteaters. Their claws are generally stout with everal groups walking on the sides of feet. Their Brains are small, skull is low, and the zygomatic arch is usually incomplete. Research Links Order Xenarthra
    ... Order Xenarthra. (armadillos, anteaters, and sloths).
    Xenarthrans radiated in South America during ... Georgia Wildlife Web Site; Mammals: Xenarthra
    ... The Order Xenarthra includes armadillos, anteaters, and sloths. Although these mammals
    may seem very different on the outside, they have several similarities ...

    20. Xenarthran - Definition Of Xenarthran By The Free Online Dictionary, Thesaurus A
    Definition of xenarthran in the Online Dictionary. Meaning of xenarthran. What does xenarthran mean? xenarthran synonyms, xenarthran antonyms.
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    Also found in: Wikipedia 0.02 sec. write_ads(AdsNum, 0) Thesaurus Legend: Synonyms Related Words Antonyms Noun Xenarthra - armadillos; American anteaters; sloths suborder Xenarthra animal order - the order of animals Edentata order Edentata - order of mammals having few or no teeth including: New World anteaters; sloths; armadillos Dasypodidae family Dasypodidae - armadillos Bradypodidae family Bradypodidae - a family of edentates comprising the true sloths family Megalonychidae Megalonychidae - mammal family consisting of the two-toed sloths family Megatheriidae Megatheriidae - extinct ground sloths family Myrmecophagidae Myrmecophagidae - New World anteaters
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