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Oryzomys Hypenemus
"''Ekbletomys hypenemus''" is an extinct oryzomyine rodent from the islands of Antigua and Barbuda, Lesser Antilles. It was described as the only species of the subgenus "''Ekbletomys''" of genus ''Oryzomys'' in a 1962 Ph.D. thesis, but that name is not available under the International Code of Zoological Nomenclature and the species remains formally unnamed. It is currently referred to as "''Ekbletomys hypenemus''" in the absence of a formally available name. The species is now thought to be extinct, but association with introduced ''Rattus'' indicates that it survived until before 1500 BCE on Antigua. It is known from abundant skeletal elements, which document it as the largest known oryzomyine, on par with '' Megalomys desmarestii'', another Antillean endemic. Its morphological features indicate that it is distinct from ''Megalomys'', which includes various other Antillean oryzomyines, and derives from a separate colonization of the Lesser Antilles by oryzomyines. In the o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalomys
''Megalomys'' is a genus of rodent in the family Cricetidae, part of the tribe Oryzomyini. The genus contains five large rodents from various Caribbean islands, of which two are known to have survived into modern times, but all of which are now extinct. The last species to survive was ''M. desmarestii'' from Martinique, which became extinct after the Mount Pelée eruption in 1902. Ancient DNA analysis places ''Megalomys'' forming a clade with '' Pennatomys,'' sister to the clade containing ''Aegialomys'', '' Nesoryzomys, Melanomys'' and ''Sigmodontomys,'' having diverged from the mainland clade around 7 million years ago. It contains the following species: Recently extinct species: * ''Megalomys desmarestii'' (Martinique giant rice rat) * ''Megalomys luciae'' (Saint Lucia giant rice rat) Fossil species: *''Megalomys audreyae'' (Barbuda giant rice rat) *'' Megalomys curazensis'' (Curaçao giant rice rat) *'' Megalomys georginae'' (Barbados Barbados is an island country i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interorbital Region
The interorbital region of the skull is located between the eyes, anterior to the braincase. The form of the interorbital region may exhibit significant variation between taxonomic groups. In oryzomyine rodents, for example, the width, form, and presence of beading in the interorbital region vary among species. In birds and many other animals whose eyes are set on the side of the skull, the interorbital region normally consists of a thin interorbital septum only. This may be pierced by a hole of larger or smaller size, connecting the eye socket In anatomy, the orbit is the cavity or socket of the skull in which the eye and its appendages are situated. "Orbit" can refer to the bony socket, or it can also be used to imply the contents. In the adult human, the volume of the orbit is , of ...s. References *Weksler, M. 2006Phylogenetic relationships of oryzomyine rodents (Muroidea: Sigmodontinae): separate and combined analyses of morphological and molecular data Bulletin of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cranium
The skull is a bone protective cavity for the brain. The skull is composed of four types of bone i.e., cranial bones, facial bones, ear ossicles and hyoid bone. However two parts are more prominent: the cranium and the mandible. In humans, these two parts are the neurocranium and the viscerocranium ( facial skeleton) that includes the mandible as its largest bone. The skull forms the anterior-most portion of the skeleton and is a product of cephalisation—housing the brain, and several sensory structures such as the eyes, ears, nose, and mouth. In humans these sensory structures are part of the facial skeleton. Functions of the skull include protection of the brain, fixing the distance between the eyes to allow stereoscopic vision, and fixing the position of the ears to enable sound localisation of the direction and distance of sounds. In some animals, such as horned ungulates (mammals with hooves), the skull also has a defensive function by providing the mount (on the fron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femur
The femur (; ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates. The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia (shinbone) and patella (kneecap), forming the knee joint. By most measures the two (left and right) femurs are the strongest bones of the body, and in humans, the largest and thickest. Structure The femur is the only bone in the upper leg. The two femurs converge medially toward the knees, where they articulate with the proximal ends of the tibiae. The angle of convergence of the femora is a major factor in determining the femoral-tibial angle. Human females have thicker pelvic bones, causing their femora to converge more than in males. In the condition ''genu valgum'' (knock knee) the femurs converge so much that the knees touch one another. The opposite extreme is ''genu varum'' (bow-leggedness). In the general populatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marie-Galante
Marie-Galante ( gcf, label=Antillean Creole, Mawigalant) is one of the islands that form Guadeloupe, an overseas department of France. Marie-Galante has a land area of . It had 11,528 inhabitants at the start of 2013, but by the start of 2018 the total was officially estimated to be 10,655, with a population density of . Administration Marie-Galante is divided into three communes (with populations at 1 January 2013): * Grand-Bourg (5,564 residents), * Capesterre-de-Marie-Galante (3,389) and * Saint-Louis (2,575). These three communes formed an intercommunal entity in 1994: the Community of Communes of Marie-Galante (french: communauté de communes de Marie-Galante). This is the oldest intercommunal structure of the overseas regions of France. History The Huecoids are the oldest known civilizations to have occupied Marie-Galante, followed by Arawaks, and then by the Island Caribs circa 850. The island was called ''Aichi'' by the Caribs and ''Touloukaera'' by the Arawak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montserrat
Montserrat ( ) is a British Overseas Territories, British Overseas Territory in the Caribbean. It is part of the Leeward Islands, the northern portion of the Lesser Antilles chain of the West Indies. Montserrat is about long and wide, with roughly of coastline. It is nicknamed "The Emerald Isle of the Caribbean" both for its resemblance to coastal Ireland and for the Irish diaspora, Irish ancestry of many of its inhabitants. Montserrat is the only non-fully sovereign full member of the Caribbean Community and the Organisation of Eastern Caribbean States. On 18 July 1995, the previously dormant Soufrière Hills volcano, in the southern part of the island, became active. Eruptions destroyed Montserrat's Georgian era capital city of Plymouth, Montserrat, Plymouth. Between 1995 and 2000, two-thirds of the island's population was forced to flee, primarily to the United Kingdom, leaving fewer than 1,200 people on the island in 1997 (rising to nearly 5,000 by 2016). The volcanic ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guadeloupe
Guadeloupe (; ; gcf, label=Antillean Creole, Gwadloup, ) is an archipelago and overseas department and region of France in the Caribbean. It consists of six inhabited islands—Basse-Terre, Grande-Terre, Marie-Galante, La Désirade, and the two inhabited Îles des Saintes—as well as many uninhabited islands and outcroppings. It is south of Antigua and Barbuda and Montserrat, north of the Commonwealth of Dominica. The region's capital city is Basse-Terre, located on the southern west coast of Basse-Terre Island; however, the most populous city is Les Abymes and the main centre of business is neighbouring Pointe-à-Pitre, both located on Grande-Terre Island. It had a population of 384,239 in 2019.Populations légales 2019: 971 Guadeloupe INSEE Like the other overseas departments, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodents Of The Caribbean
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 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 Mouse, mice, rats, squirrels, prairie dogs, porcupines, beavers, guinea pigs, and hamsters. Rabbits, hares, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leeward Islands
french: Îles-Sous-le-Vent , image_name = , image_caption = ''Political'' Leeward Islands. Clockwise: Antigua and Barbuda, Guadeloupe, Saint kitts and Nevis. , image_alt = , locator_map = , location = Caribbean SeaNorth Atlantic Ocean , coordinates = , area_km2 = , total_islands = 30+ , major_islands = Antigua and BarbudaGuadeloupeMontserratSaint Kitts and Nevis Saint MartinVirgin Islands , highest_mount = La Grande Soufrière, Guadeloupe , elevation_m = 1,467 , country = Antigua and Barbuda , country_largest_city = St. John's , country1 = Guadeloupe , country1_largest_city = Les Abymes , country2 = Saint Kitts and Nevis , country2_largest_city = Basseterre , country3 = Sint Maarten , country3_largest_city = Philipsburg , density_km2 = , population = +700,000 , ethnic_groups = The Leeward Islands () are a group of islands situated where the northeastern Caribbean Sea meets the western Atlantic Ocean. Starting with the Virgin Islands east of Puerto Rico, they extend s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic period (), and the Classical period (). Ancient Greek was the language of Homer and of fifth-century Athenian historians, playwrights, and philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Epic and Classical periods of the language. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regarded as a separate historical stage, although its earliest form closely resembles Attic Greek and its latest form approaches Medieval Greek. There were several regional dialects of Ancient Greek, of which Attic Greek developed into Koine. Dia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
