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Capricorn Rabbit Rat
The Capricorn rabbit rat (''Conilurus capricornensis'') is an extinct species of rodent from Queensland, Australia. It was described as a new species in 2010 on the basis of Pleistocene and Holocene dental remains. The specific name refers to the Capricorn Caves in Queensland, one of the locations where remains were unearthed. Some of the subfossil material post-dates the European settlement of Australia, so the Capricorn rabbit rat is a modern extinction. Since there has not been a targeted survey for the Capricorn rabbit rat, there is a thin hope of its survival, although this is unlikely. Description The Capricorn rabbit rat is larger than other rabbit rat (''Conilurus'') species. Also, unique dental features distinguish it from the white-footed rabbit rat (''Conilurus albipes'') and the brush-tailed rabbit rat (''Conilurus penicillatus''). See also *List of Australian species extinct in the Holocene *Lists of extinct species *Fauna of Australia *Threatened fauna of Austra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ago to the present. The Quaternary Period is divided into two epochs: the Pleistocene (2.58 million years ago to 11.7 thousand years ago) and the Holocene (11.7 thousand years ago to today, although a third epoch, the Anthropocene, has been proposed but is not yet officially recognised by the ICS). The Quaternary Period is typically defined by the cyclic growth and decay of continental ice sheets related to the Milankovitch cycles and the associated climate and environmental changes that they caused. Research history In 1759 Giovanni Arduino proposed that the geological strata of northern Italy could be divided into four successive formations or "orders" ( it, quattro ordini). The term "quaternary" was introduced by Jules Desnoye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-footed Rabbit Rat
The white-footed rabbit rat (''Conilurus albipes'') is an extinct species of rodent, which was originally found in woodlands from Adelaide to Sydney, but became restricted to south-eastern Australia. It was kitten-sized and was one of Australia's largest native rodents. It was nocturnal and lived among trees. It made nests filled with leaves and possibly grass in the limbs of hollow eucalyptus trees. The mother carried her young attached to her teats. In a letter to John Gould, then Governor of South Australia Sir George Grey said that he removed a baby from a teat of its dead mother. The baby clung tightly to Gould's glove. Sydney natives called it 'gnar-ruck' which translates as 'rabbit-biscuit'. It was a problem in the settlers' stores at about 1788. The last specimen was recorded at about 1845, but some were reported in 1856–57 and perhaps in the 1930s. Rats may have spread diseases or competed for food with the white-footed rabbit rat. Cats may have been predators, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent Extinctions Since 1500
Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for New Zealand, Antarctica, and several oceanic islands, though they have subsequently been introduced to most of these land masses by human activity. Rodents are extremely diverse in their ecology and lifestyles and can be found in almost every terrestrial habitat, including human-made environments. Species can be arboreal, fossorial (burrowing), saltatorial/richochetal (leaping on their hind legs), or semiaquatic. However, all rodents share several morphological features, including having only a single upper and lower pair of ever-growing incisors. Well-known rodents include mice, rats, squirrels, prairie dogs, porcupines, beavers, guinea pigs, and hamsters. Rabbits, hares, and pikas, whose incisors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct Mammals Of Australia
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, mam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct Rodents
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conilurus
The rabbit rats, genus ''Conilurus'' represent an unusual genus of Old World rats from Australia, New Guinea, and Melville Island. Head and body are 16.5–20 cm. Tail length is 18–21.5 cm. The tail is haired and has a distinct tuft at the end. These nocturnal animals are found in habitats ranging from coastal areas, swamps, plains, and forests. They have been reported along the edge of oceanic surf, presumably feeding. Young have been found to cling to one of the mother's four nipples while she forages. Gestation is 33–35 days. Species Genus ''Conilurus'' - rabbit rats *† White-footed rabbit rat, ''Conilurus albipes'' *† Capricorn rabbit rat, ''Conilurus capricornensis'' *Brush-tailed rabbit rat The brush-tailed rabbit rat (''Conilurus penicillatus'') is a species of rodent in the family Muridae. It is found in Australia and Papua New Guinea. Taxonomy The brush-tailed rabbit-rat is one of three ''Conilurus'' species that were extan ..., ''Con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Recently Extinct Mammals
Recently extinct mammals are defined by the International Union for Conservation of Nature (IUCN) as any mammals that have become Extinction, extinct since the year 1500 Current Era, CE. Since then, roughly 80 mammal species have become extinct. Extinction of taxon, taxa is difficult to confirm, as a long gap without a sighting is not definitive, but before 1995 a threshold of 50 years without a sighting was used to declare extinction. One study found that extinction from habitat loss is the hardest to detect, as this might only fragment populations to the point of concealment from humans. Some mammals declared as extinct may very well Lazarus taxon#Mammals, reappear. For example, a study found that 36% of purported mammalian extinction had been resolved, while the rest either had validity issues (insufficient evidence) or had been rediscovered. As of December 2015, the IUCN listed 30 mammalian species as "critically endangered (possibly extinct)". Conventions All species l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Threatened Fauna Of Australia
Threatened fauna of Australia are those species and subspecies of birds, fish, frogs, insects, mammals, molluscs, crustaceans and reptiles to be found in Australia that are in danger of becoming extinct. This list is the list proclaimed under the Australian federal ''Environment Protection and Biodiversity Conservation Act 1999'' (EPBC Act). The classifications are based on those used by the World Conservation Union (IUCN), however IUCN and Australian rankings do differ. Each state and territory has its own legislation relating to environmental protection. Based on the list of Australian animals extinct in the Holocene, about 33 mammals (27 from the mainland, including the thylacine), 24 birds (three from the mainland), one reptile, and three frog species or subspecies are strongly believed to have become extinct in Australia during the Holocene epoch. These figures exclude dubious taxa like the Roper River scrub robin (''Drymodes superciliaris colcloughi'') and possibly exti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fauna Of Australia
The fauna of Australia consists of a huge variety of animals; some 46% of birds, 69% of mammals, 94% of amphibians, and 93% of reptiles that inhabit the continent are endemic to it. This high level of endemism can be attributed to the continent's long geographic isolation, tectonic stability, and the effects of a unique pattern of climate change on the soil and flora over geological time. A unique feature of Australia's fauna is the relative scarcity of native placental mammals. Consequently, the marsupials – a group of mammals that raise their young in a pouch, including the macropods, possums and dasyuromorphs – occupy many of the ecological niches placental animals occupy elsewhere in the world. Australia is home to two of the five known extant species of monotremes and has numerous venomous species, which include the platypus, spiders, scorpions, octopus, jellyfish, molluscs, stonefish, and stingrays. Uniquely, Australia has more venomous than non-venomous species of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lists Of Extinct Species
This page features lists of extinct species, organisms that have become extinct, either in the wild or completely disappeared from Earth. In actual theoretical practice, a species not definitely located in the wild in the last fifty years of current time is textually called "extinct". Plants * List of recently extinct plants Animals By region * List of African animals extinct in the Holocene ** List of extinct animals of Réunion * List of Asian animals extinct in the Holocene ** List of extinct animals of India ** List of extinct animals of the Philippines * List of European animals extinct in the Holocene ** List of extinct animals of Catalonia ** List of Caucasian animals extinct in the Holocene ** List of extinct animals of the British Isles *** Extinct animals from the Isle of Man ** List of extinct and endangered species of Italy ** List of extinct and endangered species of Lithuania ** List of extinct animals of the Netherlands ** List of extinct animals of the No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Australian Species Extinct In The Holocene
This is a list of Australian species extinct in the Holocene that covers extinctions from the Holocene epoch, a geologic epoch that began about 11,650 years before present (about 9700 BCE) and continues to the present day. Most Australian megafauna disappeared in the Late Pleistocene, considerably earlier than in other continental landmasses. As a result, Australian Holocene extinctions generally are of modest size. Most extinctions occurred after the European settlement of Australia, which began with the First Fleet in 1788 CE. However, the thylacine (''Thylacinus cynocephalus'') was extirpated from mainland Australia about 2,000 or 3,000 years ago. The Norfolk swamphen also disappeared before 1788. Mammals (class Mammalia) Order Dasyuromorphia Thylacine (family Thylacinidae) Bandicoots and bilbies (order Peramelemorphia) Bandicoots (family Peramelidae) Bilbies (family Thylacomyidae) Pig-footed bandicoots (family Chaeropodidae) Order Diprotodontia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brush-tailed Rabbit Rat
The brush-tailed rabbit rat (''Conilurus penicillatus'') is a species of rodent in the family Muridae. It is found in Australia and Papua New Guinea. Taxonomy The brush-tailed rabbit-rat is one of three ''Conilurus'' species that were extant in Australia prior to European colonisation, and represents the sole surviving species of the genus. Two other species, the white-footed rabbit-rat (''C. albipes'') and the Capricorn rabbit-rat (''C. capricornensis''), are now extinct. Morphological analysis established three subspecies of ''C. penicillatus'', of which one is on Papua New Guinea and two are present within Australia: one on the Tiwi Islands off the coast of the Northern Territory, and another on the Australian mainland. Description The brush-tailed-rabbit-rat is a moderately sized murid rodent, weighing from 116 to 216 g with a head-body length of 135 to 227 mm and a tail length of 102 to 235 mm. Typically individuals are coloured grizzled grey or brown on the upper side ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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