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Amazonetta Cubensis
''Amazonetta'' is a genus of ducks that contains two species, an extant species, the Brazilian teal (''Amazonetta brasiliensis'') and the fossil species '' Amazonetta cubensis'' from the late Pleistocene The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fin ... of Cuba. References {{Taxonbar, from=Q10732450 Anatinae Taxa named by Hans von Boetticher Bird genera with one living species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Pleistocene
The Late Pleistocene is an unofficial Age (geology), age in the international geologic timescale in chronostratigraphy, also known as the Upper Pleistocene from a Stratigraphy, stratigraphic perspective. It is intended to be the fourth division of the Pleistocene Epoch within the ongoing Quaternary Period. It is currently defined as the time between 129,000 and c. 11,700 years ago. The late Pleistocene equates to the proposed Tarantian Age of the geologic time scale, preceded by the officially ratified Chibanian (commonly known as the Middle Pleistocene). The beginning of the Late Pleistocene is the transition between the end of the Penultimate Glacial Period and the beginning of the Last Interglacial around 130,000 years ago (corresponding with the beginning of Marine Isotope Stage 5). The Late Pleistocene ends with the termination of the Younger Dryas, some 10th millennium BC, 11,700 years ago when the Holocene Epoch began. The term Upper Pleistocene is currently in use as a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazilian Teal
The Brazilian teal or Brazilian duck (''Amazonetta brasiliensis'') is the only extant species of duck in the genus ''Amazonetta''. It is widely distributed in eastern South America. Taxonomy The Brazilian teal was Species description, formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's ''Systema Naturae''. He placed it with all the other ducks, swans and geese in the genus ''Anas'' and coined the binomial nomenclature, binomial name ''Anas brasiliensis''. Gmelin based his description on the ''Mareca alia species'' (the second Mareca) that was described in 1648 by the German naturalist Georg Marcgrave in his ''Historia Naturalis Brasiliae''. The Brazilian teal is now the only livng species placed in the genus ''Amazonetta'' that was introduced by the German zoologist Hans von Boetticher in 1929. It was formerly considered a ''perching duck'', but more recent analyses indicate that it belongs to a clad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Von Boetticher
Hans von Boetticher (30 August 1886 – 20 January 1958) was a German zoologist who worked on ornithology and entomology. Boetticher was employed at the natural history museum in Coburg. Several of his works deal with the higher level taxonomy of bird groups based on morphology, phylogeny and biogeography. Some of his other works include those on the pinnipeds. His special area of interest included ducks and geese, turacos, parrots, pigeons and sea-birds. The South American duck genera ''Amazonetta'' and '' Speculanas'' were designated by him. Some of the other bird taxa that he named such as ''Galapagornis'' are no longer valid.''Galapagornis'' Boetticher 1949, Beitr. Gattungssyst. Vogel. (Goecke & Evers) Krefeld 1949, 27. Aves. He wrote a series of books on bird families. These included ''Gänse- und Entenvögel aus aller Welt'' (1952), ''Albatrosse und andere Sturmvögel'' (1955), ''Lärmvögel, Turakos und Pisangfresser'' (1955), ''Fasanen, Pfauen, Perlhühner und andere Zierh� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazonetta Brasiliensis
The Brazilian teal or Brazilian duck (''Amazonetta brasiliensis'') is the only extant species of duck in the genus ''Amazonetta''. It is widely distributed in eastern South America. Taxonomy The Brazilian teal was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's ''Systema Naturae''. He placed it with all the other ducks, swans and geese in the genus ''Anas'' and coined the binomial name ''Anas brasiliensis''. Gmelin based his description on the ''Mareca alia species'' (the second Mareca) that was described in 1648 by the German naturalist Georg Marcgrave in his ''Historia Naturalis Brasiliae''. The Brazilian teal is now the only livng species placed in the genus ''Amazonetta'' that was introduced by the German zoologist Hans von Boetticher in 1929. It was formerly considered a ''perching duck'', but more recent analyses indicate that it belongs to a clade of South American dabbling ducks which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Friedrich Gmelin
Johann Friedrich Gmelin (8 August 1748 – 1 November 1804) was a German natural history, naturalist, chemist, botanist, entomologist, herpetologist, and malacologist. Education Johann Friedrich Gmelin was born as the eldest son of Philipp Friedrich Gmelin in 1748 in Tübingen. He studied medicine under his father at University of Tübingen and graduated with a Master's degree in 1768, with a thesis entitled: ', defended under the presidency of Ferdinand Christoph Oetinger, whom he thanks with the words '. Career In 1769, Gmelin became an adjunct professor of medicine at University of Tübingen. In 1773, he became professor of philosophy and adjunct professor of medicine at University of Göttingen. He was promoted to full professor of medicine and professor of chemistry, botany, and mineralogy in 1778. He died in 1804 in Göttingen and is buried there in the Albanifriedhof, Albani cemetery with his wife Rosine Louise Gmelin (1755–1828, née Schott). Johann Friedrich Gm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazonetta Cubensis
''Amazonetta'' is a genus of ducks that contains two species, an extant species, the Brazilian teal (''Amazonetta brasiliensis'') and the fossil species '' Amazonetta cubensis'' from the late Pleistocene The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fin ... of Cuba. References {{Taxonbar, from=Q10732450 Anatinae Taxa named by Hans von Boetticher Bird genera with one living species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duck
Duck is the common name for numerous species of waterfowl in the family (biology), family Anatidae. Ducks are generally smaller and shorter-necked than swans and goose, geese, which are members of the same family. Divided among several subfamilies, they are a form taxon; they do not represent a monophyletic group (the group of all descendants of a single common ancestral species), since swans and geese are not considered ducks. Ducks are mostly aquatic birds, and may be found in both fresh water and sea water. Ducks are sometimes confused with several types of unrelated water birds with similar forms, such as loons or divers, grebes, gallinules and coots. Etymology The word ''duck'' comes from Old English 'diver', a derivative of the verb 'to duck, bend down low as if to get under something, or dive', because of the way many species in the dabbling duck group feed by upending; compare with Dutch language, Dutch and German language, German 'to dive'. This word replaced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from 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 () 'most' and (; Latinized as ) 'new'. The aridification and cooling trends of the preceding Neogene were continued in the Pleistocene. The climate was strongly variable depending on the glacial cycle, oscillating between cold Glacial period, glacial periods and warmer Interglacial, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatinae
The Anatinae are a subfamily of the family Anatidae (swans, geese and ducks). Its surviving members are the dabbling ducks, which feed mainly at the surface rather than by diving. The other members of the Anatinae are the extinct moa-nalo, a young but highly apomorphic lineage derived from the dabbling ducks. There has been much debate about the systematical status and which ducks belong to the Anatinae. Some taxonomic authorities only include the dabbling ducks and their close relatives, the extinct moa-nalos. Alternatively, the Anatinae are considered to include most " ducks", and the dabbling ducks form a tribe Anatini within these. The classification as presented here more appropriately reflects the remaining uncertainty about the interrelationships of the major lineages of Anatidae (waterfowl). Systematics The dabbling duck group, of worldwide distribution, was delimited in a 1986 study to include eight genera and some 50–60 living species. However, Salvadori's te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Hans Von Boetticher
In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion, especially in the context of rank-based (" Linnaean") nomenclature (much less so under phylogenetic nomenclature). If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were presumably set forth in prehistoric times by hunter-gatherers, as suggested by the fairly sophisticated folk taxonomies. Much later, Aristotle, and later still ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
