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Praemegaceros
''Praemegaceros'' is an extinct genus of deer, known from the Pleistocene and Holocene of Western Eurasia. It contains the subgenera ''Praemegaceros,'' ''Orthogonoceros'' and ''Nesoleipoceros''. It has sometimes been synonymised with ''Megaloceros'' and ''Megaceroides'', however they have been found to be generically distinct. ''P. obscurus'' is the earliest known species from the Early Pleistocene of Europe, and had long, crooked antlers. ''P. verticornis'' is an Early to Mid-Pleistocene species, closely related to ''P. obscurus'', which lived throughout Southern Europe. The genus was widely distributed across Europe, West and Central Asia during the Early-Middle Pleistocene, with fossils having been discovered in France, Georgia, Germany, England, Greece, Israel, Italy, Romania, Russia Spain, Syria, and Tajikistan. The genus was extinct in mainland Europe and Asia by end of the Middle Pleistocene. An insular species, ''P. cazioti'' survived into the Late Pleistocene and Holocen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praemegaceros Solilhacus
''Praemegaceros'' is an extinct genus of deer, known from the Pleistocene and Holocene of Western Eurasia. It contains the subgenera ''Praemegaceros,'' ''Orthogonoceros'' and ''Nesoleipoceros''. It has sometimes been synonymised with ''Megaloceros'' and ''Megaceroides'', however they have been found to be generically distinct. ''P. obscurus'' is the earliest known species from the Early Pleistocene of Europe, and had long, crooked antlers. ''P. verticornis'' is an Early to Mid-Pleistocene species, closely related to ''P. obscurus'', which lived throughout Southern Europe. The genus was widely distributed across Europe, West and Central Asia during the Early-Middle Pleistocene, with fossils having been discovered in France, Georgia, Germany, England, Greece, Israel, Italy, Romania, Russia Spain, Syria, and Tajikistan. The genus was extinct in mainland Europe and Asia by end of the Middle Pleistocene. An insular species, ''P. cazioti'' survived into the Late Pleistocene and Holocene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praemegaceros Verticornis
''Praemegaceros'' is an extinct genus of deer, known from the Pleistocene and Holocene of Western Eurasia. It contains the subgenera ''Praemegaceros,'' ''Orthogonoceros'' and ''Nesoleipoceros''. It has sometimes been synonymised with ''Megaloceros'' and ''Megaceroides'', however they have been found to be generically distinct. ''P. obscurus'' is the earliest known species from the Early Pleistocene of Europe, and had long, crooked antlers. ''P. verticornis'' is an Early to Mid-Pleistocene species, closely related to ''P. obscurus'', which lived throughout Southern Europe. The genus was widely distributed across Europe, West and Central Asia during the Early-Middle Pleistocene, with fossils having been discovered in France, Georgia, Germany, England, Greece, Israel, Italy, Romania, Russia Spain, Syria, and Tajikistan. The genus was extinct in mainland Europe and Asia by end of the Middle Pleistocene. An insular species, ''P. cazioti'' survived into the Late Pleistocene and Holocene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praemegaceros Cazioti A6 Digital
''Praemegaceros'' is an extinct genus of deer, known from the Pleistocene and Holocene of Western Eurasia. It contains the subgenera ''Praemegaceros,'' ''Orthogonoceros'' and ''Nesoleipoceros''. It has sometimes been synonymised with ''Megaloceros'' and ''Megaceroides'', however they have been found to be generically distinct. ''P. obscurus'' is the earliest known species from the Early Pleistocene of Europe, and had long, crooked antlers. ''P. verticornis'' is an Early to Mid-Pleistocene species, closely related to ''P. obscurus'', which lived throughout Southern Europe. The genus was widely distributed across Europe, West and Central Asia during the Early-Middle Pleistocene, with fossils having been discovered in France, Georgia, Germany, England, Greece, Israel, Italy, Romania, Russia Spain, Syria, and Tajikistan. The genus was extinct in mainland Europe and Asia by end of the Middle Pleistocene. An insular species, ''P. cazioti'' survived into the Late Pleistocene and Holocene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insular Dwarfism
Insular dwarfism, a form of phyletic dwarfism, is the process and condition of large animals evolving or having a reduced body size when their population's range is limited to a small environment, primarily islands. This natural process is distinct from the intentional creation of dwarf breeds, called dwarfing. This process has occurred many times throughout evolutionary history, with examples including dinosaurs, like '' Europasaurus'' and ''Magyarosaurus dacus'', and modern animals such as elephants and their relatives. This process, and other "island genetics" artifacts, can occur not only on islands, but also in other situations where an ecosystem is isolated from external resources and breeding. This can include caves, desert oases, isolated valleys and isolated mountains ("sky islands"). Insular dwarfism is one aspect of the more general "island effect" or "Foster's rule", which posits that when mainland animals colonize islands, small species tend to evolve larger bodies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megaloceros
''Megaloceros'' (from Greek: + , literally "Great Horn"; see also Lister (1987)) is an extinct genus of deer whose members lived throughout Eurasia from the early Pleistocene to the beginning of the Holocene and were important herbivores during the Ice Ages. The largest species, ''Megaloceros giganteus'', vernacularly known as the "Irish elk" or "giant elk", is also the best known. Fallow deer are thought to be their closest living relatives. ''Megaloceros'' is part of the deer family which includes moose, elk, reindeer, and other cervids. Biology Most members of the genus were extremely large animals that favoured meadows or open woodlands. They are the most cursorial deer known, with most species averaging slightly below at the withers. The various species of the Cretan genus ''Candiacervus'' – the smallest of which, ''C. rhopalophorus'' was just high at the shoulder – are sometimes included in ''Megaloceros'' as a subgenus. Despite its name, the Irish elk was neith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megaloceros Species
''Megaloceros'' (from Greek: + , literally "Great Horn"; see also Lister (1987)) is an extinct genus of deer whose members lived throughout Eurasia from the early Pleistocene to the beginning of the Holocene and were important herbivores during the Ice Ages. The largest species, ''Megaloceros giganteus'', vernacularly known as the "Irish elk" or "giant elk", is also the best known. Fallow deer are thought to be their closest living relatives. ''Megaloceros'' is part of the deer family which includes moose, elk, reindeer, and other cervids. Biology Most members of the genus were extremely large animals that favoured meadows or open woodlands. They are the most cursorial deer known, with most species averaging slightly below at the withers. The various species of the Cretan genus ''Candiacervus'' – the smallest of which, ''C. rhopalophorus'' was just high at the shoulder – are sometimes included in ''Megaloceros'' as a subgenus. Despite its name, the Irish elk was neith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megaceroides
''Megaceroides algericus'' is an extinct species of deer known from the Late Pleistocene to the Holocene of North Africa. It is one of only two species of deer known to have been native to the African continent, alongside the Barbary stag, a subspecies of red deer. It is considered to be closely related to the giant deer species of Eurasia. Taxonomy The species was first described by Richard Lydekker as ''Cervus algericus'' in 1890 from a maxilla with teeth found near Hammam Maskhoutine in Algeria. The species ''Cervus pachygenys'' was erected for a pachyostotic mandible and an isolated molar found in Algeria by Auguste Pomel in 1892. Léonce Joleaud in two publications in 1914 and 1916 synonymised the two species, and suggested affinities with the giant deer of Europe, and placed it in the newly erected subgenus ''Megaceroides'' within the genus ''Megaceros'' (junior synonym of ''Megaloceros'') as the type species. Camille Arambourg in publications in 1932 and 1938 raised '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edwin Tulley Newton
Edwin Tulley Newton (4 May 1840 – 28 January 1930) was a British paleontologist. Newton originally worked at handicrafts, but was able to attend Thomas Henry Huxley's lectures and by 1865, was appointed as his assistant. In 1882, he became paleontologist to the "Geologic Survey", a position he retained until 1905. His early work included microscopic sectioning of coal and notable studies on cockroach brains. Later he did work on chimaeroid fish fossils. In 1893, Newton won the Lyell Medal. He was president of the Geologists' Association in 1896–1898 and president of the Palaeontographical Society from 1921 to 1928. Newton was elected Fellow of the Geological Society in 1873, Zoological Society of London in 1885, and Fellow of the Royal Society Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the judges of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural science, natu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Boyd Dawkins
Sir William Boyd Dawkins (26 December 183715 January 1929) was a British geologist and archaeologist. He was a member of the Geological Survey of Great Britain, Curator of the Manchester Museum and Professor of Geology at Owens College, Manchester. He is noted for his research on fossils and the antiquity of man. He was involved in many projects including a tunnel under the Humber, a Channel Tunnel attempt and the proving of coal under Kent. Background Dawkins was born in Wales at Buttington Vicarage in Montgomeryshire on 26 December 1837. He attracted attention at age five by collecting fossils from the local colliery spoil heaps. Soon after, his family moved into England to Fleetwood in Lancashire, where he attended Rossall School. He again attracted attention by adding fossils from the local boulder clay to his earlier collection. After leaving school, he attended Jesus College, Oxford. He graduated with a second in Classics and a first in Natural Sciences. On leaving O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parallel Evolution
Parallel evolution is the similar development of a trait in distinct species that are not closely related, but share a similar original trait in response to similar evolutionary pressure.Zhang, J. and Kumar, S. 1997Detection of convergent and parallel evolution at the amino acid sequence level. ''Mol. Biol. Evol.'' 14, 527-36. Parallel vs. convergent evolution Given a particular trait that occurs in each of two lineages descended from a specified ancestor, it is possible in theory to define parallel and convergent evolutionary trends strictly, and distinguish them clearly from one another. However the criteria for defining convergent as opposed to parallel evolution often are unclear in practice, so that arbitrary diagnosis is common in some cases. When two species are similar in a particular character, evolution is defined as parallel if the ancestors shared that similarity; if they did not, the evolution of that character in those species is defined as convergent. However, thi ... [...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] |
Fallow Deer
''Dama'' is a genus of deer in the subfamily Cervinae, commonly referred to as fallow deer. Name The name fallow is derived from the deer's pale brown colour. The Latin word ''dāma'' or ''damma'', used for roe deer, gazelles, and antelopes, lies at the root of the modern scientific name, as well as the German ''Damhirsch'', French ''daim'', Dutch ''damhert'', and Italian ''daino''. In Croatian and Serbian, the name for the fallow deer is ''jelen lopatar'' ("shovel deer"), due to the form of its antlers. The Modern Hebrew name of the fallow deer is ''yachmur'' (יחמור). Taxonomy and evolution The genus includes two extant species: Extant species Some taxonomists include the Persian fallow deer as a subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ... (''D. d. me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
