Buzdartherium
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Buzdartherium
''Buzdartherium'' (meaning " Buzdar beast") is a dubious genus of extinct paraceratheriid from Oligocene and possibly also Miocene aged sediments from the Chitarwata Formation of Pakistan.Malkani, M. Sadiq. (2016). Large Photos of Recently discovered Basilosaurid, Baluchithere Rhinoceros, Horses, Sea Cow, Proboscidean, Eucrocodile, Pterosaurs, Plesiosaur, Fishes, Invertebrates and Wood fossils from Pakistan; ''Footprints and trackways of archosaurs from Pakistan''. The monotypic species is ''B. gulkirao'', named in 2016, and its remains have been found only in the Sulaiman Basin (Chitarwata Formation), which preserves rocks dating from as early as the Cretaceous, although the Indian Plate did not collide into the Eurasian Plate until about 30 million years ago, during the Early Oligocene. Discovery and naming The holotype of ''B. gulkirao'' is based on specimen MSM-1-Taunsa, which consists of a single tusk like incisor tooth, a premolar tooth, a cross-sectioned tooth, verteb ...
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Chitarwata Formation
The Chitarwata Formation is a geological formation in western Pakistan, made up of Oligocene and early Miocene terrestrial fluvial facies. The sediments were deposited in coastal depositional environments (estuarine, strandplain and tidal flats) when Pakistan was partly covered by the Tethys Ocean. Paleomagnetic data indicates an age range of around 28 to 17 million years ago, with its base in the Oligocene, and its upper boundary, where it meets the overlying Vihowa Formation, of the Early Miocene. Together with the Vihowa Formation, the Chitarwata Formation records the sedimentation of the Himalayan foreland basin during the collision of the Indian and Asian tectonic plates, the transition from marginal marine to fluvial environments, and the rise of the Himalayas. Fossil content The Chitarwata Formation has provided a wealth of terrestrial mammal fossils of the late Paleogene and early Neogene, or Tabenbulakian; the last of the Asian land mammal ages (ALMA). Among many ...
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Paraceratheriidae
Paraceratheriidae is an extinct family of long-limbed, hornless rhinocerotoids, commonly known as paraceratheres or indricotheres, that originated in the Eocene epoch and lived until the early Miocene. The first paraceratheres were only about the size of large dogs, growing progressively larger in the late Eocene and Oligocene. They were most common in the rainforest floodplain region which is now Kazakhstan, India, and southwest China, and lived further inland throughout northern and central Asia as well. The paraceratheres reached the peak of their evolution from the middle Oligocene to the early Miocene, where they became very large, herbivorous mammals. Most genera were about the size of modern draft horses and the extinct giant horse '' Equus giganteus'', with some growing significantly larger. The largest genus was ''Paraceratherium'', which was more than twice as heavy as a bull African elephant, and was one of the largest land mammals that ever lived. However, they re ...
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Paraceratheriidae
Paraceratheriidae is an extinct family of long-limbed, hornless rhinocerotoids, commonly known as paraceratheres or indricotheres, that originated in the Eocene epoch and lived until the early Miocene. The first paraceratheres were only about the size of large dogs, growing progressively larger in the late Eocene and Oligocene. They were most common in the rainforest floodplain region which is now Kazakhstan, India, and southwest China, and lived further inland throughout northern and central Asia as well. The paraceratheres reached the peak of their evolution from the middle Oligocene to the early Miocene, where they became very large, herbivorous mammals. Most genera were about the size of modern draft horses and the extinct giant horse '' Equus giganteus'', with some growing significantly larger. The largest genus was ''Paraceratherium'', which was more than twice as heavy as a bull African elephant, and was one of the largest land mammals that ever lived. However, they re ...
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Oligocene
The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene was coined in 1854 by the German paleontologist Heinrich Ernst Beyrich from his studies of marine beds in Belgium and Germany. The name comes from the Ancient Greek (''olígos'', "few") and (''kainós'', "new"), and refers to the sparsity of extant forms of molluscs. The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene Epoch. The Oligocene is the third and final epoch of the Paleogene Period. The Oligocene is often considered an important time of transition, a link between the archaic world of the tropical Eocene and the more modern ecosystems of the Miocene. Major changes during the Oligocene included a global expansi ...
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Indus-Yarlung Suture Zone
The Indus-Yarlung suture zone or the Indus-Yarlung Tsangpo suture is a tectonic suture in southern Tibet and across the north margin of the Himalayas which resulted from the collision between the Indian plate and the Eurasian plate starting about 52 Ma. The north side of the suture zone is the Ladakh Batholith of the Karakoram-Lhasa Block. The rocks of the suture zone consist of an ophiolite mélanges composed of Neotethys oceanic crustal flyschs and ophiolites; the Dras Volcanics: which are basalts, dacites and minor radiolarian cherts – the remains of a mid- to late Mesozoic volcanic island arc; and the Indus Molasse which are an Eocene The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " ... or later continental clastic sediments. The ophiolite which can be found here is not a ...
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Urtinotherium
''Urtinotherium'' (meaning "Urtyn beast") is an extinct genus of paracerathere mammals. It was a large animal that was closely related to ''Paraceratherium'', and found in rocks dating from the Late Eocene to Early Oligocene period. The remains were first discovered in the Urtyn Obo region (now Dorbod Banner, Ulanqab) in Inner Mongolia, which the name ''Urtinotherium'' is based upon. Other referred specimens are from northern China. Description ''Urtinotherium'' was a representative of the large family Paraceratheriidae, and almost reached the proportions of ''Paraceratherium''. It is known from several findings in central and eastern Asia, though no complete skeletons are known. The holotype fossil (catalog number IVPP V.2769) includes a complete lower jaw in length, comparable to the smallest known of ''Paraceratherium''. The jaw is wedge shaped, very low in height, and with elongated branches. The symphysis was solid and extended to the beginning of the second premolars. ...
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Juxia
''Juxia'' (from , usually refers to indricotheres) is an extinct genus of indricothere, a group of herbivorous mammals that are part of the odd-toed ungulate family tree of rhinoceros and tapirs. The type species is ''Juxia sharamurenensis'', named by Zhou Mingzhen and in 1964. ''Juxia'' was around the size of a horse. It lived in Asia during the upper Eocene. As an early indricothere, ''Juxia'' had a relatively light body, held by elongated long legs and small skull firmly attached to a relatively long neck. Based on its triangular like teeth and sharp protruding incisors, ''Juxia'' was probably a strict browser, feeding on ferns and leaves on branches where most herbivorous mammals couldn't reach. In terms of habitat, ''Juxia'' lived in densely lush and tropical forests of what is now China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependencies by population, most populous country, wit ...
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Forstercooperia
''Forstercooperia'' is an extinct genus of forstercooperiine indricotheriinae, paraceratheriid Rhinocerotoidea, rhinoceros from the Middle Eocene of Asia. Description ''Forstercooperia'' is known from a vast amount of cranial material, although only some scant postcranial remains. The average size of the genus is about equal with a large dog, even though later genera like ''Juxia'' and ''Paraceratherium'' reached sizes of a cow and even much larger. Like primitive rhinocerotoids, ''Forstercooperia'' possesses blunt ends on the tips of its nasals, above the nasal incision. Unlike all modern rhinoceroses, the nasals of ''Forstercooperia'', as well as many related genera, lack rugosities, which suggests that they lacked any form of horn. The nasal incision extends fairly far into the upper jaw, ending just posterior to the canine. ''Forstercooperia'' possesses a small post-insicor diastema, not as large as its descendants, and similar in size to that of ''Hyracodon''. Taxonomy ''For ...
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Hyracodontidae
The Hyracodontidae are an extinct family of rhinoceroses endemic to North America, Europe, and Asia during the Eocene through early Oligocene, living from 48.6 to 26.3 million years ago (Mya), existing about . The Hyracodontidae thrived in the rainforests of Kazakhstan, Pakistan, and southwest China Southwest China () is a region in the south of the People's Republic of China. Geography Southwest China is a rugged and mountainous region, transitioning between the Tibetan Plateau to the west and the Chinese coastal hills (东南丘陵) and ..., a former coastal region. Fossil evidence also extends their geographical range to Germany. References Further reading * Lucas, S. G. & Sobus, J. C., (1989), The Systematics of Indricotheres. 358–378 in Prothero, D. R. & Schoch, R. M., (eds.) 1989: The Evolution of Perissodactyls, Oxford University Press, New York, New York & Oxford, England. Prehistoric rhinoceroses Oligocene odd-toed ungulates Rupelian extinctions Prehist ...
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Oxford University Press
Oxford University Press (OUP) is the university press of the University of Oxford. It is the largest university press in the world, and its printing history dates back to the 1480s. Having been officially granted the legal right to print books by decree in 1586, it is the second oldest university press after Cambridge University Press. It is a department of the University of Oxford and is governed by a group of 15 academics known as the Delegates of the Press, who are appointed by the vice-chancellor of the University of Oxford. The Delegates of the Press are led by the Secretary to the Delegates, who serves as OUP's chief executive and as its major representative on other university bodies. Oxford University Press has had a similar governance structure since the 17th century. The press is located on Walton Street, Oxford, opposite Somerville College, in the inner suburb of Jericho. For the last 500 years, OUP has primarily focused on the publication of pedagogical texts an ...
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Cladogram
A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to descendants, nor does it show how much they have changed, so many differing evolutionary trees can be consistent with the same cladogram. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor. There are many shapes of cladograms but they all have lines that branch off from other lines. The lines can be traced back to where they branch off. These branching off points represent a hypothetical ancestor (not an actual entity) which can be inferred to exhibit the traits shared among the terminal taxa above it. This hypothetical ancestor might then provide clues about the order of evolution of various features, adaptation, and other evolutionary narratives about an ...
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