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Elephas Cypriotes
''Palaeoloxodon cypriotes'' is an extinct species of dwarf elephant that inhabited the island of Cyprus during the Late Pleistocene. A probable descendant of the large straight-tusked elephant of mainland Europe and West Asia, the species is among the smallest known dwarf elephants, with fully grown individuals having an estimated shoulder height of only . It represented one of only two large animal species on the island alongside the Cypriot pygmy hippopotamus. The species became extinct around 12,000 years ago, around the time humans first colonised Cyprus, and potential (but disputed) evidence of human hunting has been found. History of research and excavations The first recorded finds were by Dorothea Bate in 1902Bate, D. M. A.: iarchive:philtrans04679714, "Preliminary Note on the Discovery of a Pygmy Elephant in the Pleistocene of Cyprus" in ''Proceedings of the Royal Society of London'' Vol. 71 (1902–1903), pp. 498–500 from the cave deposit of Páno Díkomo-''Imbohary' ... [...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 various species of Dwarf elephant, dwarf elephants that evolved during the Pleistocene epoch, as well as more ancient examples, such as the dinosaurs ''Europasaurus'' and ''Magyarosaurus''. 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 Foster's rule, "island effect" or "Foster's rule", which posits that w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorothea Bate
Dorothea Minola Alice Bate (8 November 1878 – 13 January 1951), also known as Dorothy Bate, was a Welsh palaeontologist and pioneer of archaeozoology. Her life's work was to find fossils of recently extinct mammals with a view to understanding how and why Gigantism, giant and Dwarfism, dwarf forms evolved. Early and family life Born at Napier House, Carmarthen, Carmarthenshire, Bate was the daughter of Police Superintendent Henry Reginald Bate (born in Co. Wexford, Ireland) and his wife Elizabeth Fraser Whitehill. She had an older sister and a younger brother.Shindler, Karolyn. (23 September 2004Bate, Dorothea Minola Alice (1878–1951), palaeontologist Dictionary of National Biography, ''Oxford Dictionary of National Biography.'' Retrieved 23 November 2007. She had little formal education and once commented that her education "was only briefly interrupted by school". When she was 34 her brother broke his leg and she spent around 18 months looking after her parents. She was l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Isotope Stages
Marine isotope stages (MIS), marine oxygen-isotope stages, or oxygen isotope stages (OIS), are alternating warm and cool periods in the Earth's paleoclimate, deduced from oxygen isotope data derived from deep sea core samples. Working backwards from the present, which is MIS 1 in the scale, stages with even numbers have high levels of oxygen-18 and represent cold glacial periods, while the odd-numbered stages are lows in the oxygen-18 figures, representing warm interglacial intervals. The data are derived from pollen and foraminifera (plankton) remains in drilled marine sediment cores, sapropels, and other data that reflect historic climate; these are called proxies. The MIS timescale was developed from the pioneering work of Cesare Emiliani in the 1950s, and is now widely used in archaeology and other fields to express dating in the Quaternary period (the last 2.6 million years), as well as providing the fullest and best data for that period for paleoclimatology or the stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tooth Enamel
Tooth enamel is one of the four major Tissue (biology), tissues that make up the tooth in humans and many animals, including some species of fish. It makes up the normally visible part of the tooth, covering the Crown (tooth), crown. The other major tissues are dentin, cementum, and Pulp (tooth), dental pulp. It is a very hard, white to off-white, highly mineralised substance that acts as a barrier to protect the tooth but can become susceptible to degradation, especially by acids from food and drink. In rare circumstances enamel fails to form, leaving the underlying dentin exposed on the surface. Features Enamel is the hardest substance in the human body and contains the highest percentage of minerals (at 96%),Ross ''et al.'', p. 485 with water and organic material composing the rest.Ten Cate's Oral Histology, Nancy, Elsevier, pp. 70–94 The primary mineral is hydroxyapatite, which is a crystalline calcium phosphate. Enamel is formed on the tooth while the tooth develops wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elephantidae
Elephantidae is a family (biology), family of large, herbivorous proboscidean mammals which includes the living Elephant, elephants (belonging to the genera ''Elephas'' and ''Loxodonta''), as well as a number of extinct genera like ''Mammuthus'' (mammoths) and ''Palaeoloxodon''. They are large terrestrial animal, terrestrial mammals with a snout modified into a Elephant#Trunk, trunk and teeth modified into tusks. Most Genus, genera and species in the family are extinction, extinct. The family was first described by John Edward Gray in 1821, and later assigned to taxonomic ranks within the order Proboscidea. Elephantidae has been revised by various authors to include or exclude other extinct proboscidean genera. Description Elephantids are distinguished from more basal proboscideans like gomphotheres by their teeth, which have parallel lophs, formed from the merger of the cusps found in the teeth of more basal proboscideans, which are bound by cementum. In later elephantids, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeoloxodon Cypriotes 2
''Palaeoloxodon'' is an extinct genus of elephant. The genus originated in Africa during the Early Pleistocene, and expanded into Eurasia at the beginning of the Middle Pleistocene. The genus contains the largest known species of elephants, with mature bulls over tall at the shoulders and over in weight, representing among the largest land mammals ever, including the African '' Palaeoloxodon recki'', the European straight-tusked elephant (''Palaeoloxodon antiquus'') and the South Asian ''Palaeoloxodon namadicus. P. namadicus'' has been suggested to be the largest known land mammal by some authors based on extrapolation from fragmentary remains, though these estimates are highly speculative. In contrast, the genus also contains many species of dwarf elephants that evolved via insular dwarfism on islands in the Mediterranean, some like ''Palaeoloxodon falconeri'' less than in shoulder height as fully grown adults, making them the smallest elephants known. The genus has a long and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeoloxodon Falconeri
''Palaeoloxodon falconeri'' is an extinct species of dwarf elephant that lived during the Middle Pleistocene (sometime between around 500–200,000 years ago) on the Mediterranean islands of Sicily and Malta. It is amongst the smallest of all dwarf elephants, under in height as fully grown adults. A member of the genus ''Palaeoloxodon'', it derived from a population of the mainland European straight-tusked elephant (''Palaeoloxodon antiquus''). Taxonomy In 1859, during the digging of a watertank near the town of Zebbug in central Malta, a sediment filled cavern was excavated, leading to the discovery of an elephant molar, which the owner of the property later presented to Malta Library Museum. This prompted Thomas Abel Brimage Spratt to search through the excavated sediment as well as to continue further excavation of the cavern (now known as Zebbug Cave), yielding additional elephant molars as well as other animal remains.V.L. HerridgDwarf Elephants on Mediterranean Islands: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammuthus Creticus
''Mammuthus creticus'', or the Cretan dwarf mammoth, is an extinct species of dwarf mammoth endemic to Crete sometime during the Early Pleistocene to early Middle Pleistocene. It is known from fragmentary remains found in caves on the north coast of the island. It is the smallest known dwarf mammoth and among smallest known dwarf elephantids, with an estimated shoulder height of around in adults. It was probably descended from the large mammoth ''Mammuthus meridionalis'' native to mainland Europe during the Early Pleistocene. Discoveries The type locality is Cape Malekas on the Akrotiri peninsula northeast of Chania, which probably dates to the Early Pleistocene or early Middle Pleistocene. Other possible remains have been reported from Koutalas Cave to the west. Description ''Mammuthus creticus'' is only known from fragmentary remains, including molar teeth, an incisor, a humerus, rib fragments, and a partial vertebra. With an estimated shoulder height of about and wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeoloxodon Falconeri Size Comparison
''Palaeoloxodon'' is an extinct genus of elephant. The genus originated in Africa during the Early Pleistocene, and expanded into Eurasia at the beginning of the Middle Pleistocene. The genus contains the largest known species of elephants, with mature bulls over tall at the shoulders and over in weight, representing among the largest land mammals ever, including the African '' Palaeoloxodon recki'', the European straight-tusked elephant (''Palaeoloxodon antiquus'') and the South Asian ''Palaeoloxodon namadicus. P. namadicus'' has been suggested to be the largest known land mammal by some authors based on extrapolation from fragmentary remains, though these estimates are highly speculative. In contrast, the genus also contains many species of dwarf elephants that evolved via insular dwarfism on islands in the Mediterranean, some like ''Palaeoloxodon falconeri'' less than in shoulder height as fully grown adults, making them the smallest elephants known. The genus has a long and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karpas Peninsula
The Karpas Peninsula (; ), also known as the Karpass, Karpaz or Karpasia, is a long, finger-like peninsula that is one of the most prominent geographical features of the island of Cyprus. Its farthest extent is Cape Apostolos Andreas, and its major population centre is the town of Rizokarpaso (; ). It is currently under the de facto control of the internationally-unrecognised state of Northern Cyprus. Geography It covers an area of 898 km2, making up 27% of the territory of Northern Cyprus. It is much less densely populated than the average of Northern Cyprus, with a population density of 26 people per km2 in 2010. The town of Trikomo (İskele), the district capital, is considered to be the "gateway" and the geographical starting point of the peninsula, along with the neighboring village of Bogazi (Boğaz). Apart from Trikomo, the most important towns and municipalities in the area are Yialousa, Galateia, Rizokarpaso, Komi Kebir and Akanthou. The peninsula ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatolia
Anatolia (), also known as Asia Minor, is a peninsula in West Asia that makes up the majority of the land area of Turkey. It is the westernmost protrusion of Asia and is geographically bounded by the Mediterranean Sea to the south, the Aegean Sea to the west, the Turkish Straits to the northwest, and the Black Sea to the north. The eastern and southeastern limits have been expanded either to the entirety of Asiatic Turkey or to an imprecise line from the Black Sea to the Gulf of Alexandretta. Topographically, the Sea of Marmara connects the Black Sea with the Aegean Sea through the Bosporus and the Dardanelles, and separates Anatolia from Thrace in Southeast Europe. During the Neolithic, Anatolia was an early centre for the development of farming after it originated in the adjacent Fertile Crescent. Beginning around 9,000 years ago, there was a major migration of Anatolian Neolithic Farmers into Neolithic Europe, Europe, with their descendants coming to dominate the continent a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Regression
A marine regression is a geological process occurring when areas of submerged seafloor are exposed during a drop in sea level. The opposite event, marine transgression, occurs when flooding from the sea covers previously-exposed land. Description According to one hypothesis, regressions may be linked to a "slowdown in sea-floor spreading, leading to a generalized drop in sea level (as the mid-ocean ridges would take up less space)...." That view considers major marine regressions to be one aspect of a normal variation in rates of plate tectonic activity, which leads to major episodes of global volcanism like the Siberian Traps and the Deccan Traps, which in turn cause large extinction events. Evidence of marine regressions and transgressions occurs throughout the fossil record, and the fluctuations are thought to have caused or contributed to several mass extinctions, such as the Permian–Triassic extinction event (250 million years ago, Ma) and Cretaceous–Paleogene ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
