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Elongatoolithus Andrewsi
''Elongatoolithus'' is an oogenus of dinosaur eggs found in the Late Cretaceous formations of China and Mongolia. Like other elongatoolithids, they were laid by small theropods (probably oviraptorosaurs), and were cared for and incubated by their parents until hatching. They are often found in nests arranged in multiple layers of concentric rings. As its name suggests, ''Elongatoolithus'' was a highly elongated form of egg. It is historically significant for being among the first fossil eggs given a parataxonomic name. Description ''Elongatoolithus'' eggs are small to midsized eggs, with a maximum size of about . The eggs are highly elongated, typically being 2 to 2.2 times longer than they are wide, and slightly asymmetric (with one end pointier than the other). The outer surface of their shells is ornamented with a fine pattern of nodes and ridges, either aligned parallel to the egg's long axis (lineartuberculate ornamentation) or in irregular chains (ramotuberculare ornam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CosmoCaixa Barcelona
CosmoCaixa Barcelona () is a science museum located in Barcelona, Catalonia, Spain. Formerly known as the Science Museum of Barcelona, it closed for renovations in 1998 and reopened in 2004 under its current name. The museum features a variety of exhibitions, permanent and temporary, that showcase the environment, nature, science, and space. CosmoCaixa also has a planetarium and exhibitions devoted to interaction such as touch and play for small children. It also has a bookstore, gift shop, library, teaching center and cafe. The museum is sponsored by la Caixa. Entry to the museum is free for students under 16. Adults too can enjoy at the museum with an entry ticket of 6 euros. Building The building was built between 1904-1909 by Josep Domènech i Estapà to serve as an asylum for the blind which closed in 1979. The building was renovated, retaining the original facade, and an expansion took place bringing the building to four times its original size. An expansion of the build ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citipati
''Citipati'' (; meaning "funeral pyre lord") is a genus of oviraptorid dinosaur that lived in Asia during the Late Cretaceous period, about 75 million to 71 million years ago. It is mainly known from the Ukhaa Tolgod locality at the Djadokhta Formation, where the first remains were collected during the 1990s. The genus and type species ''Citipati osmolskae'' were named and described in 2001. A second species from the adjacent Zamyn Khondt locality may also exist. ''Citipati'' is one of the best-known oviraptorids thanks to a number of well-preserved specimens, including individuals found in brooding positions atop nests of eggs, though most of them were initially referred to the related ''Oviraptor''. These nesting specimens have helped to solidify the link between non-avian dinosaurs and birds. ''Citipati'' was among the largest oviraptorids; it is estimated to have been around in length and to have weighed . Its skull was highly pneumatized, short, and had a characteristic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous China
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ''creta'', "chalk", which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation ''Kreide''. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels that created numerous shallow inland seas. These oceans and seas were populated with now- extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was ice free, and forests extended to the poles. During this time, new groups of mammals and birds appeared. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Earth b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinosaur Trace Fossils
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is the subject of active research. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201.3 mya; their dominance continued throughout the Jurassic and Cretaceous periods. The fossil record shows that birds are feathered dinosaurs, having evolved from earlier theropods during the Late Jurassic epoch, and are the only dinosaur lineage known to have survived the Cretaceous–Paleogene extinction event approximately 66 mya. Dinosaurs can therefore be divided into avian dinosaurs—birds—and the extinct non-avian dinosaurs, which are all dinosaurs other than birds. Dinosaurs are varied from taxonomic, morphological and ecological standpoints. Birds, at over 10,700 living species, are among th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Footnotes
A note is a string of text placed at the bottom of a page in a book or document or at the end of a chapter, volume, or the whole text. The note can provide an author's comments on the main text or citations of a reference work in support of the text. Footnotes are notes at the foot of the page while endnotes are collected under a separate heading at the end of a chapter, volume, or entire work. Unlike footnotes, endnotes have the advantage of not affecting the layout of the main text, but may cause inconvenience to readers who have to move back and forth between the main text and the endnotes. In some editions of the Bible, notes are placed in a narrow column in the middle of each page between two columns of biblical text. Numbering and symbols In English, a footnote or endnote is normally flagged by a superscripted number immediately following that portion of the text the note references, each such footnote being numbered sequentially. Occasionally, a number between brack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanxiong
Nanxiong (), historically Namyung, Namhung, and Nanhsiung, is a county-level city of northern Guangdong province, People's Republic of China, bordering Jiangxi to the north, east and southeast. It is under the administration of Guangdong Guangdong (, ), alternatively romanized as Canton or Kwangtung, is a coastal province in South China on the north shore of the South China Sea. The capital of the province is Guangzhou. With a population of 126.01 million (as of 2020) ... Province. Climate References County-level cities in Guangdong Shaoguan {{Guangdong-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protoceratops
''Protoceratops'' (; ) is a genus of small protoceratopsid dinosaurs that lived in Asia during the Late Cretaceous, around 75 to 71 million years ago. The genus ''Protoceratops'' includes two species: ''P. andrewsi'' and the larger ''P. hellenikorhinus''. The former was described in 1923 with fossils from the Mongolian Djadokhta Formation, and the latter in 2001 with fossils from the Chinese Bayan Mandahu Formation. ''Protoceratops'' was initially believed to be an ancestor of ankylosaurians and larger ceratopsians, such as ''Triceratops'' and relatives, until the discoveries of other protoceratopsids. Populations of ''P. andrewsi'' may have evolved into ''Bagaceratops'' through anagenesis. ''Protoceratops'' were small ceratopsians, about long and in body mass. While adults were largely quadrupedal, juveniles had the capacity to walk around bipedally if necessary. They were characterized by a proportionally large skull, short and stiff neck, and neck frill. The frill was likel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oolithes
''Oolithes'' is an oogenus with uncertain affinities. It has historical significance because it was the earliest named oogenus. James Buckman described the first named species as ''Oolithes bathonicae'' in a communication to the 4 May 1859 meeting of the Geological Society (published in 1860). Buckman believed that ''Oolithes'' represented the eggs of a teleosaurian reptile. Since Buckman's description of ''O. bathonicae'', two other oospecies have been named: ''O. nanhsiungensis'' and ''O. spheroides'', both of which were native to the Maastrichtian of China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and .... References Egg fossils Bathonian life Maastrichtian life Cretaceous China Fossils of China Cretaceous England Jurassic England Fossils of England Fossil par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yang Zhongjian
Yang Zhongjian, also Yang Chung-chien (; 1 June 1897 – 15 January 1979), courtesy name Keqiang (), also known as C.C. (Chung Chien) Young, was a Chinese paleontologist and zoologist. He was one of China's foremost vertebrate paleontologists. He has been called the "Father of Chinese Vertebrate Paleontology". Biography Yang was born in Hua County, Shaanxi, China. He graduated from the Department of Geology of Peking University in 1923, and in 1927 received his doctorate from the University of Munich in Germany. In 1928 he worked for the Cenozoic Research Laboratory of the Geological Survey of China and took charge of excavations at the Peking Man Site at Zhoukoudian. He held professorial posts at the Geological Survey of China, Peking University, and Northwest University in Xi'an. Yang's scientific work was instrumental in the creation of China's Institute of Vertebrate Paleontology and Paleoanthropology in Beijing, which today houses one of the most important collections of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prismatoolithus
''Prismatoolithus'' is an oogenus of dinosaur egg from the Cretaceous (Hauterivian-Maastrichtian) and possibly also the earliest Paleocene. They likely belonged to troodontids Troodontidae is a clade of bird-like theropod dinosaurs. During most of the 20th century, troodontid fossils were few and incomplete and they have therefore been allied, at various times, with many dinosaurian lineages. More recent fossil discov ...Mateus, I, H Mateus, MT Antunes, O Mateus, P Taquet, V Ribeiro, G Manuppella. 1998. Upper Jurassic theropod dinosaur embryos from Lourinhã (Portugal). Memórias da Academia das Ciências de Lisboa 37, 101-110 References Dinosaur reproduction Egg fossils Fossils of Canada Paleontology in Alberta Fossils of China Fossils of France Fossils of Japan Fossils of Mexico Fossils of Morocco Fossils of Spain Tremp Formation Fossils of the United States Paleontology in Montana Paleontology in New Mexico Paleontology in Utah Milk River Formation Fos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prismatoolithidae
Prismatoolithidae is an oofamily of fossil eggs. They may have been laid by ornithopods or theropod Theropoda (; ), whose members are known as theropods, is a dinosaur clade that is characterized by hollow bones and three toes and claws on each limb. Theropods are generally classed as a group of saurischian dinosaurs. They were ancestrally c ...s. References Egg fossils Dinosaur reproduction {{eggshell-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
