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Euphractine
Euphractinae is an armadillo subfamily in the family Chlamyphoridae. Euphractinae are known for having a well developed osteoderm that has large cavities filled with adipose tissue, and more hair follicles with well developed sebaceous glands in comparison to the Dasypodidae sub family. These are believed to be evolutionary adaptations in the Euphractinae to support it in the cooler climate that it usually lives in. __TOC__ Taxonomy It contains the following genera: *''Chaetophractus'', hairy armadillos *''Euphractus'', six-banded armadillos *'' Zaedyus'', pichis Extinct genera include: * '' Paleuphractus'' * '' Doellotatus'' * ''Proeuphractus'' * ''Macroeuphractus'' Phylogeny A mitochondrial DNA investigation has concluded that Euphractinae is the sister group of a clade consisting of Chlamyphorinae (fairy armadillos) and Tolypeutinae (giant, three-banded and naked-tailed armadillos) along with extinct glyptodont Glyptodonts are an extinct subfamily of large, heavily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Eocene
The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the atmosphere was exceptionally low in comparison with the more common isotope 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay. As with other geologic periods, the strata that define the start and end ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calyptophractus Retusus
The greater fairy armadillo (''Calyptophractus retusus''), also known as Burmeister's armadillo or the Chacoan fairy armadillo, is a species of armadillo in the family Chlamyphoridae. It is found in Argentina, Bolivia, and Paraguay. Its natural habitats are subtropical or tropical dry shrubland and subtropical or tropical dry lowland grassland. It is threatened by habitat loss and persecution. It is the only species in the genus ''Calyptophractus''. Description The greater fairy armadillo is a small species, growing to a length of from with a tail about long and weighing up to a kilogram (2.2 lb). Like other armadillos it has bands of armour on its dorsal (upper) surface but, in common with the pink fairy armadillo ''Chlamyphorus truncatus'' but unlike most other armadillos, these bands are fused to its pelvis and spine. They are soft in texture and are linked together with skin which gives flexibility to the body. They come to an abrupt end at the rear of the body. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doedicurus
''Doedicurus'', or ''Dædicurus'', is an extinct genus of glyptodont from South America containing one species, ''D. clavicaudatus''. Glyptodonts are a member of the family Chlamyphoridae, which also includes some modern armadillo species, and they are classified in the superorder Xenarthra alongside sloths and anteaters. Being a glyptodont, it was a rotund animal with heavy armor and a carapace. Averaging at an approximate , it was one of the largest glyptodonts to have ever lived. Though glyptodonts were quadrupeds, large ones like ''Doedicurus'' may have been able to stand on two legs like other xenarthrans. It notably sported a spiked tail club, which may have weighed in life, and it may have swung this in defense against predators or in fights with other ''Doedicurus'' at speeds of perhaps . ''Doedicurus'' was likely a grazer, but its teeth and mouth, like those of other glyptodonts, seem unable to have chewed grass effectively, which may indicate a slow metabolism. ''Doed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glyptodontinae
Glyptodonts are an extinct subfamily of large, heavily armoured armadillos. They arose in South America around 48 million years ago and spread to southern North America after the continents became connected several million years ago. The best-known genus within the group is '' Glyptodon''. While they were formerly considered to constitute the distinct family Glyptodontidae, in 2016, an analysis of '' Doedicurus'' Mitochondrial DNA (also known as mtDNA / mDNA) found that it was, in fact, nested within the modern armadillos as the sister group of a clade consisting of Chlamyphorinae and Tolypeutinae. For this reason, glyptodonts and all armadillos but ''Dasypus'' were relocated to a new family, Chlamyphoridae, and glyptodonts were demoted from the former family Glyptodontidae to a subfamily. Evolution Glyptodonts first evolved during the Eocene in South America, which remained their center of species diversity. For example, an Early Miocene glyptodont with many primitive fea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaetophractus Nationi
The Andean hairy armadillo (''Chaetophractus nationi'') is an armadillo found mainly in Bolivia, in the region of the Puna; the departments of Oruro, La Paz, and Cochabamba (Gardner, 1993). Nowark (1991) describes it as distributed in Bolivia and northern Chile. A recent publication of Pacheco (1995) also locates the species in the Puno Region of Peru. This species is also thought to be present in northern Argentina. However, this location may actually only contain a population of '' C. vellerosus''. Physical description The Andean hairy armadillo averages a tail length of three to seven inches and a body length of eight to sixteen inches. This armadillo is found to have eighteen dorsal bands, in which eight are considered movable. The Andean hairy armadillo gets its name genuinely because this armadillo has hair covering all of its ventral side and its legs as well. This species comes in a variety of colors ranging from light brown to yellow/beige. Their teeth are unique because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaetophractus Villosus
The big (or large) hairy armadillo (''Chaetophractus villosus'') is one of the largest and most numerous armadillos in South America. It lives from sea level to altitudes of up to 1,300 meters across the southern portion of South America, and can be found in grasslands, forests, and savannahs, and has even started claiming agricultural areas as its home. It is an accomplished digger and spends most of its time below ground. It makes both temporary and long-term burrows, depending on its food source. Armadillos are protected from predators by a series of thin, bony plates along the head and back. They reach sexual maturity at around 9 months and have been known to live over 30 years in captivity. Though this animal is routinely harvested for its meat and its shell, or simply killed by farmers, it has shown resiliency, and populations seem to be handling this exploitation well. Currently, no protective practices are in place for this armadillo, but it does live in many protected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zaedyus Pichiy
The pichi (''Zaedyus pichiy''), dwarf armadillo or pygmy armadillo is an armadillo native to Argentina. It is the only living member of the genus ''Zaedyus'', and the only armadillo to hibernate. Description Pichis are relatively small armadillos, measuring approximately long, with a tail of about . Adults weigh anything from , and males may be slightly larger than females. The carapace varies from light yellow to near-black, and consists of heavy scapular and pelvic shields composed of rectangular osteoderms, and separated by six to eight movable bands. An additional "nuchal" band lies in front of the scapular shield, and there is also a triangular shield on top of the head, and further osteoderms along the tail. The underside of the animal has a coat of tan-coloured hair, which is thicker and longer in winter; there are also a few long hairs protruding through small holes near the posterior edge of some of the scales. Pichis have well-developed claws on all four feet. The ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphractus Sexcinctus
The six-banded armadillo (''Euphractus sexcinctus''), also known as the yellow armadillo, is an armadillo found in South America. The sole extant member of its genus, it was first described by Swedish zoologist Carl Linnaeus in 1758. The six-banded armadillo is typically between in head-and-body length, and weighs . The carapace (hard shell on the back) is pale yellow to reddish brown, marked by scales of equal length, and scantily covered by buff to white bristle-like hairs. The forefeet have five distinct toes, each with moderately developed claws. Six-banded armadillos are efficient diggers and form burrows to live in and search for prey. The armadillo is alert and primarily solitary. An omnivore, it feeds on insects, ants, carrion, and plant material. Due to their poor eyesight, armadillos rely on their sense of smell to detect prey and predators. Births take place throughout the year; gestation is 60 to 64 days long, after which a litter of one to three is born. Weaning o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dasypodidae
Dasypodidae is a family of mostly extinct genera of armadillos. One genus, ''Dasypus'', is extant, with at least seven living species. __TOC__ Classification Below is a taxonomy of armadillos in this family. Family Dasypodidae *† Genus '' Acantharodeia'' *† Genus '' Amblytatus'' *† Genus '' Archaeutatus'' *† Genus '' Astegotherium'' *† Genus '' Barrancatatus'' *† Genus '' Chasicotatus'' *† Genus '' Chorobates'' *† Genus '' Coelutaetus'' *† Genus '' Eocoleophorus'' *† Genus '' Epipeltecoelus'' *† Genus '' Eutatus'' *† Genus '' Hemiutaetus'' *† Genus '' Isutaetus'' *† Genus '' Lumbreratherium'' *† Genus '' Macrochorobates'' *† Genus '' Mazzoniphractus'' *† Genus '' Meteutatus'' *† Genus '' Pedrolypeutes'' *† Genus '' Prodasypus'' *† Genus '' Proeutatus'' *† Genus '' Prostegotherium'' *† Genus '' Pucatherium'' *† Genus ''Punatherium'' *† Genus '' Stegotherium'' *† Genus ''Stenotatus'' *† Genus '' Utaetus'' * Subfamily Dasypo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cingulata
Cingulata, part of the superorder Xenarthra, is an order of armored New World placental mammals. Dasypodids and chlamyphorids, the armadillos, are the only surviving families in the order. Two groups of cingulates much larger than extant armadillos (maximum body mass of 45 kg (100 lb) in the case of the giant armadillo) existed until recently: pampatheriids, which reached weights of up to 200 kg (440 lb) and chlamyphorid glyptodonts, which attained masses of 2,000 kg (4,400 lb) or more. The cingulate order originated in South America during the Paleocene epoch about 66 to 56 million years ago, and due to the continent's former isolation remained confined to it during most of the Cenozoic. However, the formation of a land bridge allowed members of all three families to migrate to southern North America during the Pliocene or early Pleistocene as part of the Great American Interchange. After surviving for tens of millions of years, all of the pamp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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