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Hydromyini
Hydromyini is a very large, diverse tribe of muroid rodents in the subfamily Murinae. They are the dominant native rodents in Australasia and one of only two native rodent groups there, the other being the ''R. fuscipes'' group of the genus ''Rattus'' in the tribe Rattini. They are also found in parts of Southeast Asia. Taxonomy They are thought to be relatively early offshoots from the Murinae, with only Rattini and Phloeomyini being more basal than them. They likely colonized New Guinea (then a part of Sahul) from either the Sunda Shelf or the Philippines during the late Miocene or early Pliocene, about 5 million years ago, and diversified extremely rapidly. From here, they colonized Australia about 2-3 million years ago, undergoing major adaptive radiation. Earlier taxonomists formerly split this group into three subfamilies (Hydromyinae, Pseudomyinae, and an unnamed "Old Papuan group"). Although all were later merged into the Murinae, they were still retained as multiple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pencil-tailed Tree Mouse
''Chiropodomys'' (or pencil-tailed tree mice) is a genus of Old World rats and mice native to Southeast Asia and northeast India. They are tree-dwelling, very small mice, mostly found in tropical rainforest. In total six extant species have been identified, but only one of these, '' Chiropodomys gliroides'', is common and widely distributed, and has been extensively studied. Species Genus ''Chiropodomys'' — pencil-tailed tree mice: * Palawan pencil-tailed tree mouse, ''Chiropodomys calamianensis'' Taylor, 1934, Palawan and neighboring islands *Indomalayan pencil-tailed tree mouse, ''Chiropodomys gliroides'' Blyth, 1856, northeast India, southeastern China, mainland Southeast Asia, Sumatra, Java *Koopman's pencil-tailed tree mouse, ''Chiropodomys karlkoopmani'' Musser, 1979, Mentawai Islands * Large pencil-tailed tree mouse, ''Chiropodomys major'' Thomas, 1893, Borneo *Gray-bellied pencil-tailed tree mouse, ''Chiropodomys muroides'' Medway, 1965, Borneo *Small pencil-tailed tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murinae
The Old World rats and mice, part of the subfamily Murinae in the family Muridae, comprise at least 519 species. Members of this subfamily are called murines. In terms of species richness, this subfamily is larger than all mammal families except the Cricetidae and Muridae, and is larger than all mammal orders except the bats and the remainder of the rodents. Description The Murinae are native to Africa, Europe, Asia, and Australia. They are terrestrial placental mammals. They have also been introduced to all continents except Antarctica, and are serious pest animals. This is particularly true in island communities where they have contributed to the endangerment and extinction of many native animals. Two prominent murine species have become vital laboratory animals: the brown rat and house mouse are both used as medical subjects. The murines have a distinctive molar pattern that involves three rows of cusps instead of two, the primitive pattern seen most frequently in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rattini
Rattini is a very large, diverse tribe of muroid rodents in the subfamily Murinae. They are found throughout Asia and Australasia, with a few species ranging into Europe and northern Africa. The most well-known members of this group are the true rats (genus ''Rattus''), several species of which have been introduced worldwide. Taxonomy They are thought to be the second-most basal member of the Murinae despite their high modern diversity, with only the Phloeomyini being more basal than them. The genus '' Micromys'' was previously classified in a polyphyletic division also containing '' Hapalomys'', ''Chiropodomys'', and ''Vandeleuria'', but phylogenetic evidence supports it forming a sister group to the rest of the Rattini. It has been debated over whether it represents its own tribe (Micromyini) or a basal member of the Rattini, but the American Society of Mammalogists classifies it within the Rattini based on a 2019 study. Distribution They are mostly found throughout Asi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Miocene
The Late Miocene (also known as Upper Miocene) is a sub-epoch of the Miocene epoch (geology), Epoch made up of two faunal stage, stages. The Tortonian and Messinian stages comprise the Late Miocene sub-epoch, which lasted from 11.63 Ma (million years ago) to 5.333 Ma. The evolution of life The gibbons (family Hylobatidae) and orangutans (genus ''Pongo'') are the first groups to split from the line leading to the hominins, including humans, then gorillas (genus ''Gorilla''), and finally, chimpanzees and bonobos (genus ''Pan (genus), Pan''). The splitting date between hominin and chimpanzee lineages is placed by some between 4 to 8 million years ago, that is, during the Late Miocene. References External links GeoWhen Database - Late Miocene Miocene, .03 Miocene geochronology, 03 Messinian, * Tortonian, * {{geochronology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale million years ago. It is the second and most recent epoch of the Neogene Period in the . The Pliocene follows the Epoch and is followed by the Epoch. Prior to the 2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xeromys Myoides
''Xeromys myoides'', also known as the water mouse, marine mouse, mangrove mouse, false water rat, manngay and yirrkoo, is a species of rodent native to waterways of Australia and Papua New Guinea. Taxonomy A description of the species was published by Oldfield Thomas in 1889, establishing a new genus ''Xeromys''; recognition as a monotypic genus has been maintained by later authorities. Thomas recognised an affinity with the species ''Hydromys chrysogaster'', the water-rat found in Australia and New Guinea. A current name used to refer to the species is ''water mouse''. A common name of this species has long been false water-rat, although other names predate these. In 1995 the Australian Nature Conservation Agency released a document in which were recorded two indigenous names for ''H. chrysogaster'', the Murrinh-Patha name ''manngay'' and the Mayali and Kunwinjku name ''yirrku'' (official Kunwinjku orthography ''yirrkku'' ). They recommended that the latter name be adop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydromys
''Hydromys'' is a genus of semiaquatic rodents in the subfamily Murinae. Three species are endemic to New Guinea and nearby islands. The fourth species, the rakali, is also found on Australia. The most recently discovered member of this genus was described in 2005. List of species Genus ''Hydromys'' - water rats *Rakali, ''Hydromys chrysogaster'' E. Geoffroy, 1804 *Western water rat, ''Hydromys hussoni'' Musser and Piik, 1982 * New Britain water rat, ''Hydromys neobritannicus'' Tate and Archbold, 1935 * Ziegler's water rat, ''Hydromys ziegleri'' Helgen, 2005 Note: ''Hydromys habbema'' Tate and Archbold, 1941 and ''Hydromys shawmayeri'' (Hinton, 1943) are placed within ''Baiyankamys '' Baiyankamys'' is a genus of amphibious murid rodents. It was originally described, along with the species '' Baiyankamys shawmayeri'' by Hinton in 1943 after he found the remains of a single individual in south east of the Bismarck Mountain ...'' after Helgen, 2005. References * * * Exte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Genus
In biological taxonomy, the type genus is the genus which defines a biological family and the root of the family name. Zoological nomenclature According to the International Code of Zoological Nomenclature, "The name-bearing type of a nominal family-group taxon is a nominal genus called the 'type genus'; the family-group name is based upon that of the type genus." Any family-group name must have a type genus (and any genus-group name must have a type species, but any species-group name may, but need not, have one or more type specimens). The type genus for a family-group name is also the genus that provided the stem to which was added the ending -idae (for families). :Example: The family name Formicidae has as its type genus the genus ''Formica'' Linnaeus, 1758. Botanical nomenclature In botanical nomenclature, the phrase "type genus" is used, unofficially, as a term of convenience. In the '' ICN'' this phrase has no status. The code uses type specimens for ranks up to fam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiaquatic
In biology, semiaquatic can refer to various types of animals that spend part of their time in water, or plants that naturally grow partially submerged in water. Examples are given below. Semiaquatic animals Semiaquatic animals include: * Vertebrates ** Amphibious fish; also several types of normally fully aquatic fish such as the grunion and plainfin midshipman that spawn in the intertidal zone ** Some amphibians such as newts and salamanders, and some frogs such as fire-bellied toads and wood frogs. ** Some reptiles such as crocodilians, turtles, water snakes and marine iguanas. ** Penguins. ** Some rodents such as beavers, muskrats and capybaras. **Some insectivorous mammals such as desmans, water shrews and platypuses. ** Some carnivoran mammals, including seals, polar bears and otters. ** Hippopotamuses. * Semiterrestrial echinoderms of the intertidal zone, such as the "cliff-clinging" sea urchin ''Colobocentrotus atratus'' and the starfish '' Pisaster ochraceus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Society Of Mammalogists
The American Society of Mammalogists (ASM) was founded in 1919. Its primary purpose is to encourage the study of mammals, and professions studying them. There are over 4,500 members of this society, and they are primarily professional scientists who emphasize the importance of public policy and education. There are several ASM meetings held each year and the society manages several publications such as the ''Journal of Mammalogy The ''Journal of Mammalogy'' is a bimonthly peer-reviewed scientific journal published by Oxford University Press on behalf of the American Society of Mammalogists. Both the society and the journal were established in 1919. The journal covers r ...'', ''Special Publications'', '' Mammalian Species'', and ''Society Pamphlets''. The best known of these is the ''Journal of Mammalogy''. The ASM also maintains ''The Mammal Image Library'' which contains more than 1300 mammal slides. A president, vice president, recording secretary, secretary-treasurer, a ... [...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 taxonomic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vandeleuria
''Vandeleuria'' is a small genus of rodent from Asia with only three species. It is the only member of the tribe Vandeleurini. Species in this genus are known as the long-tailed climbing mice. Species *Nilgiri long-tailed tree mouse, ''Vandeleuria nilagirica'' Jerdon, 1867 *Nolthenius's long-tailed climbing mouse, ''Vandeleuria nolthenii'' Phillips, 1929 *Asiatic long-tailed climbing mouse The Asiatic long-tailed climbing mouse (''Vandeleuria oleracea'') is a species of rodent found in South and Southeast Asia. It is known as ගස් මීයා by Sinhalese people. It is known to spread the ''Ixodes ''Ixodes'' is a ge ..., ''Vandeleuria oleracea'' Bennett, 1832 References Rodent genera Taxa named by John Edward Gray {{Murinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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