|
Petromus Minor
''Petromus'' is a genus of hystricognath rodents that contains the dassie rat ''(Petromus typicus)'' of southwestern Africa, the only extant member of this group and the entire family Petromuridae. Two fossil species are known from the Pliocene, with the oldest being ''Petromus antiquus ''Petromus'' is a genus of hystricognath rodents that contains the dassie rat ''(Petromus typicus)'' of southwestern Africa, the only extant member of this group and the entire family Petromuridae. Two fossil species are known from the Pliocene ...'' of the Early Pliocene. References {{Taxonbar, from=Q10804847 Hystricognath rodents Rodent genera Mammal genera with one living species Taxa named by Andrew Smith (zoologist) ... [...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] |
Holocene
The Holocene ( ) is the current geological epoch. It began approximately 11,650 cal years Before Present (), after the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene has been identified with the current warm period, known as MIS 1. It is considered by some to be an interglacial period within the Pleistocene Epoch, called the Flandrian interglacial.Oxford University Press – Why Geography Matters: More Than Ever (book) – "Holocene Humanity" section https://books.google.com/books?id=7P0_sWIcBNsC The Holocene corresponds with the rapid proliferation, growth and impacts of the human species worldwide, including all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dassie Rat
The dassie rat (''Petromus typicus'') is an African rodent found among rocky outcroppings. It is the only living member of its genus, ''Petromus'', and family, Petromuridae. The name " dassie" means " hyrax" in Afrikaans,dassie rats are not to be confused with Cape hyraxes, which are also called dassies and are not rodents. and the two animals are found in similar habitats. ''Petromus'' means "rock mouse" and dassie rats are one of many rodents sometimes called rock rats. The family and genus names are sometimes misspelled as Petromyidae and ''Petromys''. Characteristics Dassie rats are squirrel-like in appearance. Their tails are hairy, but not bushy whereas the soles of their feet are distinctly bare and have pads. Their heads are noticeably flattened. The overall coloration can be a range of browns, greys, or almost black. The nose is yellowish and tends to stand out. They have no underfur. The teats are located on the sides of the torso, which allows the young to feed f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petromus Typicus
The dassie rat (''Petromus typicus'') is an African rodent found among rocky outcroppings. It is the only living member of its genus, ''Petromus'', and family, Petromuridae. The name "dassie" means "hyrax" in Afrikaans,dassie rats are not to be confused with Cape hyraxes, which are also called dassies and are not rodents. and the two animals are found in similar habitats. ''Petromus'' means "rock mouse" and dassie rats are one of many rodents sometimes called rock rats. The family and genus names are sometimes misspelled as Petromyidae and ''Petromys''. Characteristics Dassie rats are squirrel-like in appearance. Their tails are hairy, but not bushy whereas the soles of their feet are distinctly bare and have pads. Their heads are noticeably flattened. The overall coloration can be a range of browns, greys, or almost black. The nose is yellowish and tends to stand out. They have no underfur. The teats are located on the sides of the torso, which allows the young to feed from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petromus Antiquus
''Petromus'' is a genus of hystricognath rodents that contains the dassie rat ''(Petromus typicus)'' of southwestern Africa, the only extant member of this group and the entire family Petromuridae. Two fossil species are known from the Pliocene, with the oldest being ''Petromus antiquus ''Petromus'' is a genus of hystricognath rodents that contains the dassie rat ''(Petromus typicus)'' of southwestern Africa, the only extant member of this group and the entire family Petromuridae. Two fossil species are known from the Plioce ...'' of the Early Pliocene. References {{Taxonbar, from=Q10804847 Hystricognath rodents Rodent genera Mammal genera with one living species Taxa named by Andrew Smith (zoologist) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petromus Minor
''Petromus'' is a genus of hystricognath rodents that contains the dassie rat ''(Petromus typicus)'' of southwestern Africa, the only extant member of this group and the entire family Petromuridae. Two fossil species are known from the Pliocene, with the oldest being ''Petromus antiquus ''Petromus'' is a genus of hystricognath rodents that contains the dassie rat ''(Petromus typicus)'' of southwestern Africa, the only extant member of this group and the entire family Petromuridae. Two fossil species are known from the Pliocene ...'' of the Early Pliocene. References {{Taxonbar, from=Q10804847 Hystricognath rodents Rodent genera Mammal genera with one living species Taxa named by Andrew Smith (zoologist) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hystricognath
The Hystricognathi are an infraorder of rodents, distinguished from other rodents by the bone structure of their skulls. The masseter medialis (a jaw muscle) passes partially through a hole below each eye socket (called the infraorbital foramen) and connects to the bone on the opposite side. This, together with their lack of an infraorbital plate and the relative size of the infraorbital foramen, distinguishes hystricognaths from other rodent groups. The 18 families within the Hystricognathi are divided into two parvorders, the Phiomorpha and the Caviomorpha. The Caviomorpha are mostly native to South America, with a few species in the Caribbean and North America, while the Phiomorpha occur in the Old World. Behavior Play behavior has been observed in seven hystricognath families. The caviomorphs chase each other, play-wrestle, and gallop. The longer-legged species chase more often than the shorter-legged species. They also rotate their heads and body muscles as a form of pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodents
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] |
Dassie Rat
The dassie rat (''Petromus typicus'') is an African rodent found among rocky outcroppings. It is the only living member of its genus, ''Petromus'', and family, Petromuridae. The name " dassie" means " hyrax" in Afrikaans,dassie rats are not to be confused with Cape hyraxes, which are also called dassies and are not rodents. and the two animals are found in similar habitats. ''Petromus'' means "rock mouse" and dassie rats are one of many rodents sometimes called rock rats. The family and genus names are sometimes misspelled as Petromyidae and ''Petromys''. Characteristics Dassie rats are squirrel-like in appearance. Their tails are hairy, but not bushy whereas the soles of their feet are distinctly bare and have pads. Their heads are noticeably flattened. The overall coloration can be a range of browns, greys, or almost black. The nose is yellowish and tends to stand out. They have no underfur. The teats are located on the sides of the torso, which allows the young to feed f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young population make Afr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petromuridae
Petromuridae is a family of hystricognath rodents that contains the dassie rat ''(Petromus typicus)'' of southwestern Africa, the only extant member of this group. The genus ''Petromus'' contains a couple of extinct species, and additionally there are fossil genera formerly of the family Thryonomyidae Thryonomyidae is a family of hystricognath rodents that contains the cane rats ''(Thryomys)'' found throughout sub-Saharan Africa, and a number of fossil genera. Taxonomy Thryonomyidae was formerly more diverse and widespread, with fossil relati ... that were found to belong to this family instead; '' Apodecter'', '' Tufamys'' and two species of '' Paraphiomys'' (''australis'' and ''roessneri'') which have yet to be placed in their own genus. References Rodent families Hystricognath rodents {{rodent-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hystricognath Rodents
The Hystricognathi are an infraorder of rodents, distinguished from other rodents by the bone structure of their skulls. The masseter medialis (a jaw muscle) passes partially through a hole below each eye socket (called the infraorbital foramen) and connects to the bone on the opposite side. This, together with their lack of an infraorbital plate and the relative size of the infraorbital foramen, distinguishes hystricognaths from other rodent groups. The 18 families within the Hystricognathi are divided into two parvorders, the Phiomorpha and the Caviomorpha. The Caviomorpha are mostly native to South America, with a few species in the Caribbean and North America, while the Phiomorpha occur in the Old World. Behavior Play behavior has been observed in seven hystricognath families. The caviomorphs chase each other, play-wrestle, and gallop. The longer-legged species chase more often than the shorter-legged species. They also rotate their heads and body muscles as a form of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Africa")