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Erlikosaurus
''Erlikosaurus'' (meaning "Erlik's lizard") is a genus of therizinosaurid that lived in Asia during the Late Cretaceous period. The fossils, a skull and some post-cranial fragments, were found in the Bayan Shireh Formation of Mongolia in 1972, dating to around 96 million and 89 million years ago. These remains were later described by Altangerel Perle and Rinchen Barsbold in 1980, naming the new genus and species ''Erlikosaurus andrewsi''. It represents the second therizinosaur taxon from this formation (alongside ''Enigmosaurus'' and ''Segnosaurus'') with the most complete skull among members of this peculiar family of dinosaurs. In contrast to most therizinosaurids, ''Erlikosaurus'' was a small member reaching nearly in length and in mass. It had a well-developed beak at the snout tip and toothed jaws that were used for its herbivorous diet. The feet ended in four toes with the first one articulated to the ankle—in contrast to the vestigial first toe of most theropods. Like o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Therizinosaurid
Therizinosauridae (meaning 'scythe lizards')Translated paper is a family of derived (advanced) dinosaurs whose fossil remains have been found in mostly boundary. Even though representative fossils have only been found throughout and North America, the range of Therizino ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Therizinosauridae
Therizinosauridae (meaning 'scythe lizards')Translated paper is a family of derived (advanced) whose fossil remains have been found in mostly boundary. Even though representative fossils have only been found throughout and |
Segnosaurus
''Segnosaurus'' is a genus of therizinosaurid dinosaur that lived in what is now southeastern Mongolia during the Late Cretaceous, about 102–86 million years ago. Multiple incomplete but well-preserved specimens were discovered in the Gobi Desert in the 1970s, and in 1979 the genus and species ''Segnosaurus galbinensis'' were named. The generic name ''Segnosaurus'' means "slow lizard" and the specific name ''galbinensis'' refers to the Galbin region. The known material of this dinosaur includes the lower jaw, neck and tail vertebrae, the pelvis, shoulder girdle, and limb bones. Parts of the specimens have gone missing or become damaged since they were collected. ''Segnosaurus'' was a large-bodied therizinosaur that is estimated to have been about long and to have weighed about . It would have been bipedal, with the trunk of its body tilted upwards. The head was small with a beak at the tip of the jaws, and the neck was long and slender. The lower jaw was down-turned at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enigmosaurus
''Enigmosaurus'' (meaning "Enigma lizard" or "Enigmatic lizard") is a genus of therizinosauroid that lived in Asia during the Late Cretaceous period. It was a medium-sized, ground-dwelling, bipedal herbivore that represents the third therizinosaur taxon from the Bayan Shireh Formation, although it is known from the lower part. The genus is monotypic, including only the type species ''E. mongoliensis'', known from a well preserved pelvis and other tentative body remains. Discovery and naming The holotype, IGM 100/84, was discovered at the Khara Khutul locality in the Bayan Shireh Formation (sometimes called Baynshire Formation or the Baynshirenskaya Svita), southeastern Mongolia, dating from the Late Cretaceous period, and first reported in 1979 on a pelvic comparison with other theropod dinosaurs. At the time, little was known about therizinosaurs. In 1980, it was mentioned again, this time in the new infraorder created by the Mongolian paleontologists Rinchen Barsbold and Altan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayan Shireh Formation
The Bayan Shireh Formation (also known as Baynshiree/Baynshire, Baynshirenskaya Svita or Baysheen Shireh) is a geological formation in Mongolia, that dates to the Cretaceous period. It was first described and established by Vasiliev et al. 1959. Description The Bayan Shireh Formation is primarily composed by varicoloured claystones and sandstones with calcareous concretions and characterized by grey mudstones and yellowish-brown medium grained sandstones. Up to thick, the most complete sections are found in the eastern Gobi Desert, consisting of fine-grained, often cross-stratified gray sandstone interbedded with claystone and concretionary, intraformational conglomerates with relatively thick units of red to brown mudstone in the upper part. The Baynshire and Burkhant localities are mainly composed by mudstone, siltstone, sandstone, and conglomerates, with most of their sedimentation being fluvial. The environments that were present on the Bayan Shireh Formation consisted ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1980 In Paleontology
Bryophytes Arthropods Insects Molluscs Newly named bivalves Archosauromorphs Newly named dinosaurs Data courtesy of George Olshevsky's dinosaur genera list. ''Note: the name LancangosaurusZhao, 1980. esozoic vertebrate-bearing beds and stratigraphy of northern Xinjinag: Report of Paleontological Expedition to Xinjiang IV.Memoirs of the Institute of Vertebrate Palaeontology and Palaeoanthropology, Academia Sinica A. 15, 1-119. is mistakenly treated as a nomen nudum synonymous with Datousaurus (because Dong et al. 1983 believed it to be conspecific with Datousaurus). However, it is actually an early spelling variant of another nomen nudum, Lancangjiangosaurus.'' Newly named birds Pterosauria Newly named pterosaurs Lepidosauromorphs Plesiosaurs * Plesiosaur gastroliths documented.Darby and Ojakangas (1980). Sanders, Manley, and Carpenter (2001), "Table 12.1" page 167. References {{Reflist * Darby, D. G. and Ojakangas, R. W.; 1980; Gastroliths from a Late Cretac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Altangerel Perle
Altangerel Perle (born 1945) is a Mongolian palaeontologist. He is employed at the National University of Mongolia. He has described species such as ''Goyocephale lattimorei'', '' Achillobator giganticus'' and '' Erlikosaurus andrewsi''. He has been honored by Polish palaeontologist Halszka Osmólska Halszka Osmólska (September 15, 1930 – March 31, 2008) was a Polish paleontologist who had specialized in Mongolian dinosaurs. Biography She was born in 1930 in Poznań. In 1949, she began to study biology at Faculty of Biology and Earth Scie ..., who named the species '' Hulsanpes perlei'' after him. References 1945 births Living people Mongolian paleontologists National University of Mongolia faculty {{Mongolia-bio-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erlik
Erlik, Erlig, Erlik Khan, Erleg or Yerleg (Hungarian mythology equivalent to '' Ördög'') is the god of death and the underworld, sometimes referred to as ''Tamag'' (hell) in Turkic mythology. ''Er'' (or ''yer'') means ''Earth'', in the depths of which Erlik lives in. From the underworld, Erlik brings forth death, plague and evil spirits to torment humans and take their souls into his realm. Since Tengrism is not based on a written corpus but encompasses the experienced spiritual life of Turkic people, there are no unanimous beliefs among all Turkic people. Legends In the Turkic mythology, Erlik was involved in the creation of humanity.Çoban, Ramazan Volkan. Türk Mitolojisinde Kötülük Tanrısı Erlik'in İnanıştaki Yeri, Tasviri ve Kökeni (Turkish)' He slew the messenger-god, Maidere/Maydere, and is a teacher of sin. He is sometimes represented by a totemic bear. In Turkic mythology, Erlik was the deity of evil, darkness, lord of the lower world and judge of the dea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympatric
In biology, two related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter one another. An initially interbreeding population that splits into two or more distinct species sharing a common range exemplifies sympatric speciation. Such speciation may be a product of reproductive isolation – which prevents hybrid offspring from being viable or able to reproduce, thereby reducing gene flow – that results in genetic divergence. Sympatric speciation may, but need not, arise through secondary contact, which refers to speciation or divergence in allopatry followed by range expansions leading to an area of sympatry. Sympatric species or taxa in secondary contact may or may not interbreed. Types of populations Four main types of population pairs exist in nature. Sympatric populations (or species) contrast with parapatric populations, which contact one another in adjacent but not shared ranges and do no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niche Partitioned
In ecology, niche differentiation (also known as niche segregation, niche separation and niche partitioning) refers to the process by which competing species use the environment differently in a way that helps them to coexist. The competitive exclusion principle states that if two species with identical niches (ecological roles) compete, then one will inevitably drive the other to extinction. This rule also states that two species cannot occupy the same exact niche in a habitat and coexist together, at least in a stable manner. When two species differentiate their niches, they tend to compete less strongly, and are thus more likely to coexist. Species can differentiate their niches in many ways, such as by consuming different foods, or using different areas of the environment. As an example of niche partitioning, several anole lizards in the Caribbean islands share common diets—mainly insects. They avoid competition by occupying different physical locations. Although these liz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany, an isotype is a duplicate of the holotype, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering. A holotype is not necessarily "typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
