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Elephas Maximus
''Elephas'' is one of two surviving genera in the family of elephants, Elephantidae, with one surviving species, the Asian elephant, ''Elephas maximus''. Several extinct species have been identified as belonging to the genus, extending back to the Pliocene era. While formerly assigned to this genus, '' Elephas recki'', the straight-tusked elephant ''E. antiquus'' and the dwarf elephants '' E. falconeri'' and '' E. cypriotes'' are now placed in the separate genus '' Palaeoloxodon''. The genus is very closely related to the genus ''Mammuthus''. Taxonomy The scientific name ''Elephas'' was proposed by Carl Linnaeus in 1758 who described the genus and an elephant from Ceylon. The genus is assigned to the proboscidean family Elephantidae and is made up of one living and seven extinct species:Maglio, V.J. (1973). "Origin and evolution of the Elephantidae". ''Transactions of the American Philosophical Society, Philadelphia Volume 63''. American Philosophical Society, Philadelphia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Elephant
The Indian elephant (''Elephas maximus indicus'') is one of four extant recognised subspecies of the Asian elephant and native to mainland Asia. Since 1986, the Asian elephant has been listed as Endangered on the IUCN Red List as the wild population has declined by at least 50% since the 1930s to 1940s, i.e. three elephant generations. The Asian elephant is threatened by habitat loss, degradation and fragmentation. Characteristics In general, Asian elephants are smaller than African elephants and have the highest body point on the head. The tip of their trunk has one finger-like process. Their back is convex or level. Indian elephants reach a shoulder height of between , weigh between , and have 19 pairs of ribs. Their skin colour is lighter than that of '' E. m. maximus'' with smaller patches of depigmentation, but darker than that of '' E. m. sumatranus''. Females are usually smaller than males, and have short or no tusks. The largest Indian elephant was high at the ... [...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 Cenozoic Era. The Pliocene follows the Epoch and is followed by the Epoch. Prior to the 2009 revision of the geologic time sca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeoloxodon
''Palaeoloxodon'' is an extinct genus of elephant. The genus originated in Africa during the Pliocene era, and expanded into Eurasia during the Pleistocene era. The genus contains some of the largest known species of elephants, over four metres tall at the shoulders, including the European straight-tusked elephant (''Palaeoloxodon antiquus''), and the southern Asian '' Palaeoloxodon namadicus'', the latter of which was possibly the largest known land mammal based on fragmentary remains, but this requires proper reexamination. In contrast, the genus also contains many species of dwarf elephants that evolved via insular dwarfism on islands in the Mediterranean, some only a metre in height, making them the smallest elephants known. The genus has a long and complex taxonomic history, and at various times, it has been considered to belong to '' Loxodonta'' or '' Elephas'', but today is usually considered a valid and separate genus in its own right. Taxonomy In 1924, circumscribed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elephas Beyeri
''Elephas beyeri'' is an extinct species of dwarf elephant belonging to the Elephantidae family of the Middle Pleistocene. It was named after the anthropologist H. Otley Beyer. The type specimen was discovered on Cabarruyan Island in The Philippines but has since been lost. Overview ''Elephas beyeri'' was a dwarf elephant with a probable estimated stature of 1.2 m in shoulder height. During its naming, von Koenigswald proposed that these dwarfed elephants were descendants of the '' Elephas namadicus'' (Palaeoloxodon) lineage. It was thought by von Koenigswald that these animals crossed from the mainland Asia to the Philippines via land bridge connecting with Taiwan. This, however, is still debated but a research in 2021 showed an evidence of the possibility. Aside from the missing initial specimen, another confirmed discovery were unearthed in 2001 in the same locality. Further possible fossils were found in the Visayas and at a number of sites in Luzon Luzon (; ) is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syrian Elephant
The Syrian elephant or Western Asiatic elephant (''Elephas maximus asurus'') was the westernmost population of the Asian elephant (''Elephas maximus''), which became extinct in ancient times. Skeletal remains of ''E. m. asurus'' have been recorded from the Middle East: Iran, Iraq, Syria, and Turkey from periods dating between at least 1800 BC and likely 700 BC. Due to the lack of any Late Pleistocene or early to mid Holocene record for Asian elephants in the region, there are suggestions that the elephants were anthropogenically introduced into the region during the Bronze Age, though this is disputed. Ancient Syrian craftsmen used the tusks of ''E. m. asurus'' to make ivory carvings. In Syria, the production of ivory items was at its maximum during the first millennium BC, when the Arameans made splendid ivory inlay for furniture. Description Syrian elephants were among the largest Asian elephant subspecies to have survived into historic times, measuring or more at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elephants In Ancient China
The existence of elephants in ancient China is attested both by archaeological evidence and by depictions in Chinese artwork. Long thought to belong to an extinct subspecies of the Asian elephant named ''Elephas maximus rubridens'', they lived in Central and Southern China before the 14th century BC. They once occurred as far north as Anyang, Henan in Northern China. The elephant is mentioned in the earliest received texts, including the ''Shijing'', ''Liji'', and '' Zuozhuan.'' The oracle bone script and bronzeware script glyphs for elephant are pictographic depictions of an animal with a long trunk. Their modern descendant is the regular script character 象 (Standard Modern Chinese, ''xiàng''). In December 2011, a study by a team of scientists from China reported that the elephant living in China in ancient times (Shang and Zhou dynasties) could not have been a subspecies of the Asian elephant, as previously thought, but probably belonged to the genus ''Palaeoloxodon''. '' P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinction
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Javan Elephant
The Javan elephant (''Elephas maximus sondaicus'') was proposed by Paules Edward Pieris Deraniyagala in 1953, based on an illustration of a carving on the Buddhist monument of Borobudur in Java. He thought that the Asian elephant (''Elephas maximus'') had indeed existed on the island and had gone extinct. It may be considered synonymous with the Sumatran elephant (''E. maximus sumatranus''). Fossils of the Asian elephant have been found in Pleistocene deposits on Java. The question of when elephants became extinct on Java is unsettled. Chinese chronicles contemporary with the period of Hindu influence in Java recorded that Javan kings rode on elephants, and that Java exported ivory to China. As elephants were, at least occasionally, transported by ship, it is possible that the elephants in Java during the period of Hindu influence had been imported from India. A tradition in the northeastern part of Borneo holds that the Borneo elephants that currently live in the wild there, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (taxonomy)
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, '' Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borneo Elephant
The Borneo elephant, also called the Bornean elephant or the Borneo pygmy elephant, is a subspecies of Asian elephant ''(Elephas maximus)'' that inhabits northeastern Borneo, in Indonesia and Malaysia. Its origin remains the subject of debate. A definitive subspecific classification as ''Elephas maximus borneensis'' awaits a detailed range-wide morphometric and genetic study. Since 1986, the Asian elephant has been listed as Endangered on the IUCN Red List as the population has declined by at least 50% over the last three generations, estimated to be 60–75 years. It is pre-eminently threatened by loss, degradation and fragmentation of habitat. The Sultan of Sulu was thought to have introduced captive elephants to Borneo in the 18th century, which were released into the jungle. Comparison of the Borneo elephant population to putative source populations in DNA analysis indicates that the Borneo elephants more likely derived from Sundaic stock and are indigenous to Borneo, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sumatran Elephant
The Sumatran elephant (''Elephas maximus sumatranus'') is one of four recognized subspecies of the Asian elephant, and native to the Indonesian island of Sumatra. In 2011, IUCN upgraded the conservation status of the Sumatran elephant from endangered to critically endangered in its Red List as the population had declined by at least 80% during the past three generations, estimated to be about 75 years. The subspecies is preeminently threatened by habitat loss, degradation and fragmentation, and poaching; over 69% of potential elephant habitat has been lost within the last 25 years. Much of the remaining forest cover is in blocks smaller than , which are too small to contain viable elephant populations. Characteristics In general, Asian elephants are smaller than African elephants and have the highest body point on the head. The tip of their trunk has one finger-like process. Their back is convex or level. Females are usually smaller than males, and have short or no tusks. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sri Lankan Elephant
The Sri Lankan elephant (''Elephas maximus maximus'') is native to Sri Lanka and one of three recognised subspecies of the Asian elephant. It is the type subspecies of the Asian elephant and was first described by Carl Linnaeus under the binomial ''Elephas maximus'' in 1758. The Sri Lankan elephant population is now largely restricted to the dry zone in the north, east and southeast of Sri Lanka. Elephants are present in Udawalawe National Park, Yala National Park, Lunugamvehera National Park, Wilpattu National Park and Minneriya National Park but also live outside protected areas. It is estimated that Sri Lanka has the highest density of elephants in Asia. Human-elephant conflict is increasing due to conversion of elephant habitat to settlements and permanent cultivation. Characteristics In general, Asian elephants are smaller than African elephants and have the highest body point on the head. The tip of their trunk has one finger-like process. Their back is conve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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