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Juliomys Ximenezi
''Juliomys'' is a genus of South American rodents of the family Cricetidae. Five species are known, all found in Argentina and Brazil. They are as follows: *''Juliomys anoblepas'' (extinct) *''Juliomys ossitenuis'' *''Juliomys pictipes The lesser Wilfred's mouse (''Juliomys pictipes'') is a species of South American rodents of the family Cricetidae. It was first described by Wilfred H. Osgood under the name ''Thomasomys pictipes'', then into the genus ''Wilfredomys'', and now ...'' (Lesser Wilfred's mouse) *'' Juliomys rimofrons'' (Cleft-headed juliomys) *'' Juliomys ximenezi'' (Aracuaria Forest tree mouse) References Rodent genera {{Sigmodontinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juliomys Anoblepas
''Juliomys anoblepas'' is a rodent in the genus ''Juliomys'' of the subfamily Sigmodontinae known from a single broken skull. The specimen was collected by Peter Wilhelm Lund in the caves of Lagoa Santa, Minas Gerais, Brazil, in the first half of the 19th century and described by Herluf Winge in 1888 as ''Calomys anoblepas''. The species remained unstudied and its affinities unclear until 2011, when it was recognized as a member of the genus ''Juliomys'', which includes three other species from southern Brazil and nearby Argentina and Paraguay. ''J. anoblepas'' is probably a separate extinct species of the genus, which is no longer found at Lagoa Santa. ''Juliomys anoblepas'' is similar to the other members of its genus in the configuration of its zygomatic plate (a bony plate on the side of the skull). It hardly extends forward in front of the connection between the plate and the main body of the skull, and that connection is relatively low on the skull. Furthermore, the inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juliomys Pictipes
The lesser Wilfred's mouse (''Juliomys pictipes'') is a species of South American rodents of the family Cricetidae. It was first described by Wilfred H. Osgood under the name ''Thomasomys pictipes'', then into the genus ''Wilfredomys'', and now known as ''Juliomys pictipes''. The lesser Wilfred's mouse is endemic to northeastern Argentina, southeastern Brazil and eastern Paraguay. Its physical appearance ranges from dark brown to light orange coloration and the typical size is small to medium. This species is arboreal, spending most of its time trees and living in the local forests at altitudes from sea level to . Currently, this species is listed as Least Concern by the IUCN, but, threats include livestock farming, ranching, and wood harvesting. Taxonomy ''Juliomys pictipes'' was first discovered by Osgood in 1933. It was originally named ''Thomasomys pictipes''. For several decades, the placement of this species was uncertain and fairly recently changed to ''Juliomys picti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilfred Hudson Osgood
Wilfred Hudson Osgood (December 8, 1875 – June 20, 1947) was an American zoologist. Biography Osgood was born in Rochester, New Hampshire, the oldest child of a family of watchmakers. The family moved to California in 1888 and he went to study in Santa Clara, California, Santa Clara and San Jose, California, San Jose. He joined in the activities of the Cooper Ornithological Club and found company in wikisource:Author:Chester Barlow, Chester Barlow and Rollo Beck, Rollo H. Beck. He taught at a school in Arizona for a year and then moved to the newly formed Stanford University, where he came to meet Charles Henry Gilbert, Charles H. Gilbert and David Starr Jordan. He joined the staff of the Bureau of Economic Ornithology and Mammalogy, of the United States Department of Agriculture at the age of 22. This group later became the Bureau of Biological Survey under Clinton Hart Merriam. In 1909 he moved to the Field Museum of Natural History in Chicago, where he was assistant curator o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and recover. As a species' potential Range (biology), range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxon, Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the Fossil, fossil record) after a period of apparent absence. Over five billion species are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryotes globally, possibly many times more if microorganisms are included. Notable extinct animal species include Dinosaur, non-avian dinosaurs, Machairodontinae, saber-toothed cats, and mammoths. Through evolution, species arise through the process of specia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juliomys Ossitenuis
''Juliomys ossitenuis'' is a species of rodent in the family Cricetidae native to South America. Taxonomy This rodent is in the Kingdom Animalia. They are found in the Phylum Chordate, Chordata, Class Mammalia, and Order Rodentia. Its specific epithet is named ''Juliomys ossitenuis''. They belong to the Family Cricetidae and Subfamily Sigmodontinae. Habitat They can survive in habitats that accumulate heavy amounts of rain. Biology Three types of hair are present in the dorsal region of this species' fur: aristiform, setiform and villiform. The ventral coat is maize yellow, paws in dorsal view are light orange (apricot yellow and dark orange), tail is smooth and intensely bi-colored dorsoventrally, presence and absence of tufts of hair at the tip of the tail, and ventral coat banding pattern, with a gray base corresponding to approximately half and one third of the coat length. Karyotype The karyotypes of this rodent is 2n = 20 and NA = 36. References Juliomys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juliomys Rimofrons
''Juliomys rimofrons'', also known as the cleft-headed juliomys, is a South American rodent species in the family Cricetidae. It is found in southern Brazil. The species is arboreal and lives in montane forests. It is threatened because of the small size and fragmentation of its current range. It's karyotype A karyotype is the general appearance of the complete set of chromosomes in the cells of a species or in an individual organism, mainly including their sizes, numbers, and shapes. Karyotyping is the process by which a karyotype is discerned by de ... has 2n = 20, FN = 34. References Juliomys Mammals described in 2002 {{Sigmodontinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juliomys Ximenezi
''Juliomys'' is a genus of South American rodents of the family Cricetidae. Five species are known, all found in Argentina and Brazil. They are as follows: *''Juliomys anoblepas'' (extinct) *''Juliomys ossitenuis'' *''Juliomys pictipes The lesser Wilfred's mouse (''Juliomys pictipes'') is a species of South American rodents of the family Cricetidae. It was first described by Wilfred H. Osgood under the name ''Thomasomys pictipes'', then into the genus ''Wilfredomys'', and now ...'' (Lesser Wilfred's mouse) *'' Juliomys rimofrons'' (Cleft-headed juliomys) *'' Juliomys ximenezi'' (Aracuaria Forest tree mouse) References Rodent genera {{Sigmodontinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion of the Americas. South America is bordered on the west by the Pacific Ocean, on the north and east by the Atlantic Ocean, and to the south by the Drake Passage; North America and the Caribbean Sea lie to the northwest. The continent includes twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela; two dependent territory, dependent territories: the Falkland Islands and South Georgia and the South Sandwich Islands; and one administrative division, internal territory: French Guiana. The Dutch Caribbean ABC islands (Leeward Antilles), ABC islands (Aruba, Bonaire, and Curaçao) and Trinidad and Tobago are geologically located on the South-American continental shel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent
Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for 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/ricochetal (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 Mouse, mice, rats, squirrels, prairie dogs, porcupines, beavers, Cavia, guinea pigs, and hamsters. Once included wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cricetidae
The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At over 870 species, it is either the largest or second-largest family of mammals, and has members throughout the Americas, Europe and Asia. Characteristics The cricetids are small mammals, ranging from just in length and in weight in the New World pygmy mouse up to and in the muskrat. The length of their tails varies greatly in relation to their bodies, and they may be either furred or sparsely haired. The fur of most species is brownish in colour, often with a white underbelly, but many other patterns exist, especially in the cricetine and arvicoline subfamilies. Like the Old World mice, cricetids are adapted to a wide range of habitats, from the high Arctic to tropical rainforests and hot deserts. Some are arboreal, with long balancing tails and other adaptations for climbing, while others ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina
Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the List of countries and dependencies by area, eighth-largest country in the world. Argentina shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a Federation, federal state subdivided into twenty-three Provinces of Argentina, provinces, and one autonomous city, which is the federal capital and List of cities in Argentina by population, largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a Federalism, federal system. Argentina claims sovereignty ov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
