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Pukyongosaurus
''Pukyongosaurus'' (meaning "Pukyong lizard", after the Pukyong National University) is a genus of titanosauriform dinosaur that lived in South Korea during the Early Cretaceous period (Aptian - Albian). It may have been closely related to ''Euhelopus'', and is known from a series of vertebrae in the neck and back. The characteristics that were originally used to distinguish this genus have been criticized as being either widespread or too poorly preserved to evaluate, rendering the genus an indeterminate nomen dubium among titanosauriforms. The 2022 study noted that ''Pukyongosaurus'' is probably a somphospondylan. Discovery In 2001, several fragments of a sauropod skeleton were discovered in the Hasandong Formation in Hadong County, South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western borde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somphospondyli
Somphospondyli is an extinct clade of titanosauriform sauropods that lived from the Late Jurassic until the end of the Late Cretaceous, comprising all titanosauriforms more closely related to Titanosauria proper than Brachiosauridae. The remains of somphospondylans have been discovered in all six continents. Classification The group has officially been defined under the PhyloCode as the largest clade containing ''Saltasaurus loricatus'', but not ''Giraffatitan brancai.'' Features found as diagnostic of this clade by Mannion ''et al.'' (2013) include the possession of at least 15 cervical vertebrae; a bevelled radius bone end; sacral vertebrae with camellate internal texture; convex posterior articular surfaces of middle to posterior caudal vertebrae; biconvex distal caudal vertebrae; humerus anterolateral corner "squared"; among multiple others. The following cladogram depicts the reference phylogeny used to defined Somphospondlyi under the PhyloCode The ''International Code ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pukyong National University
Pukyong National University (PKNU) is a national university in Busan, South Korea, formed in 1996. The university has two campuses, Daeyeon-dong and Yongdang-dong, situated near the coastal district of Nam-gu. PKNU has a traditional focus on fisheries sciences and other maritime fields, and has extensive facilities for Marine and Technology studies. The school's symbol mascot is anthropomorphic Moby Dick, "Baek Kyung-i". The school name was changed through a vote in August 2021. History PKNU was formed in 1996 from the merger of two national universities with long histories, the National Fisheries University of Busan, established in 1941, and the Busan National University of Technology, which was established in 1924. Historically, Daeyeon-dong was a small fishing village populated by anchovy fishermen. In the early years of the 20th century these fishermen found their products in high demand and they became quite wealthy. They used the money to purchase what is now the Daeye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macronaria
Macronaria is a clade of sauropod dinosaurs. Macronarians are named after the large diameter of the nasal opening of their skull, known as the external naris, which exceeded the size of the orbit, the skull opening where the eye is located (hence ''macro''- meaning large, and –''naria'' meaning nose). Fossil evidence suggests that macronarian dinosaurs lived from the Middle Jurassic (Bathonian) through the Late Cretaceous (Maastrichtian). Macronarians have been found globally, including discoveries in Argentina, the United States, Portugal, China, and Tanzania. Like other sauropods, they are known to have inhabited primarily terrestrial areas, and little evidence exists to suggest that they spent much time in coastal environments. Macronarians are diagnosed through their distinct characters on their skulls, as well as appendicular and vertebral characters. Macronaria is composed of several subclades and families notably including Camarasauridae and Titanosauriformes, among severa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macronarians
Macronaria is a clade of sauropod dinosaurs. Macronarians are named after the large diameter of the nasal opening of their skull, known as the external naris, which exceeded the size of the orbit, the skull opening where the eye is located (hence ''macro''- meaning large, and –''naria'' meaning nose). Fossil evidence suggests that macronarian dinosaurs lived from the Middle Jurassic (Bathonian) through the Late Cretaceous (Maastrichtian). Macronarians have been found globally, including discoveries in Argentina, the United States, Portugal, China, and Tanzania. Like other sauropods, they are known to have inhabited primarily terrestrial areas, and little evidence exists to suggest that they spent much time in coastal environments. Macronarians are diagnosed through their distinct characters on their skulls, as well as appendicular and vertebral characters. Macronaria is composed of several subclades and families notably including Camarasauridae and Titanosauriformes, among severa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hasandong Formation
The Hasandong Formation () is an Early Cretaceous ( Aptian to Albian) geologic formation in South Korea. It has been dated to the late Aptian and earliest Albian, between 118.0 ± 2.6 Ma and 112.4 ± 1.3 Ma. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation. Tracks of the pterosaur ichnospecies ''Pteraichnus koreanensis'' have also been recovered from the unit.Y.-N. Lee, H.-J. Lee, J. and Y. Kobayashi. 2008. New pterosaur tracks from the Hasandong Formation (Lower Cretaceous) of Hadong County, South Korea. Cretaceous Research 29:345-353. Fossil content Paleofauna * '' Hadongsuchus acerdentis'' - nomen nudum * Tyrannosauroidea indet. - "Tooth." * Carcharodontosauridae indet. * '' Chiayusaurus asianensis''? (possibly a synonym of '' Chiayusaurus lacustris'') - "Tooth.""Table 13.1," in Weishampel, et al. (2004). Page 271. * ''Pukyongosaurus milleniumi'' - "Cervical and dorsal vertebrae, ribs, limb and gir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous
The Early Cretaceous ( geochronological name) or the Lower Cretaceous (chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 145 Ma to 100.5 Ma. Geology Proposals for the exact age of the Barremian-Aptian boundary ranged from 126 to 117 Ma until recently (as of 2019), but based on drillholes in Svalbard the defining early Aptian Oceanic Anoxic Event 1a (OAE1a) was carbon isotope dated to 123.1±0.3 Ma, limiting the possible range for the boundary to c. 122–121 Ma. There is a possible link between this anoxic event and a series of Early Cretaceous large igneous provinces (LIP). The Ontong Java-Manihiki-Hikurangi large igneous province, emplaced in the South Pacific at c. 120 Ma, is by far the largest LIP in Earth's history. The Ontong Java Plateau today covers an area of 1,860,000 km2. In the Indian Ocean another LIP began to form at c. 120 Ma, the Kerguelen P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil Taxa Described In 2001
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absolute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossils Of South Korea
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the abso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hauterivian Life
The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous Epoch or a stage in the Lower Cretaceous Series. It spans the time between 132.9 ± 2 Ma and 129.4 ± 1.5 Ma (million years ago). The Hauterivian is preceded by the Valanginian and succeeded by the Barremian.See Gradstein ''et al.'' (2004) for a detailed geologic timescale Stratigraphic definitions The Hauterivian was introduced in scientific literature by Swiss geologist Eugène Renevier in 1873. It is named after the Swiss town of Hauterive at the shore of Lake Neuchâtel. The base of the Hauterivian is defined as the place in the stratigraphic column where the ammonite genus ''Acanthodiscus'' first appears. A reference profile for the base (a GSSP) was officially ratified by the International Union of Geological Sciences in December of 2019, and is placed in La Charce, France. The top of the Hauterivian (the base of the Barremian) is at the first appearance of ammonite species ''Spitidiscus hugii'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barremian Life
The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 129.4 ± 1.5 Ma (million years ago) and 121.4 ± 1.0 Ma). It is a subdivision of the Early Cretaceous Epoch (or Lower Cretaceous Series). It is preceded by the Hauterivian and followed by the Aptian Stage.See Gradstein ''et al.'' (2004) or the online geowhen database (link below) Stratigraphic definitions The original type locality for the Barremian Stage is in the vicinity of the village of Barrême, Alpes-de-Haute-Provence, France. Henri Coquand defined the stage and named it in 1873. The base of the Barremian is determined by the first appearance of the ammonites ''Spitidiscus hugii'' and ''Spitidiscus vandeckii''. The end of the Barremian is determined by the geomagnetic reversal at the start of the M0r chronozone, which is biologically near the first appearance of the ammonite '' Paradeshayesites oglanlensis''. Regional equivalents The Barremian falls in the Gallic epoch, a subdiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous Dinosaurs Of Asia
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Early may refer to: History * The beginning or oldest part of a defined historical period, as opposed to middle or late periods, e.g.: ** Early Christianity ** Early modern Europe Places in the United States * Early, Iowa * Early, Texas * Early Branch, a stream in Missouri * Early County, Georgia Other uses * ''Early'' (Scritti Politti album), 2005 * ''Early'' (A Certain Ratio album), 2002 * Early (name) * Early effect, an effect in transistor physics * Early Records, a record label * the early part of the morning See also * Earley (other) Earley is a town in England. Earley may also refer to: * Earley (surname), a list of people with the surname Earley * Earley (given name), a variant of the given name Earlene * Earley Lake, a lake in Minnesota *Earley parser, an algorithm *Earley ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hadong County
Hadong County (, ''Hadong-gun'') is a Administrative divisions of South Korea, county in South Gyeongsang Province, South Korea. It is on the far-west side of the province, bordering South Jeolla Province. The county office is located at Hadeong-eup. History The county of Hadong was called ''Dasachon'' (, "county of much sand") when it was a part of the Jin (Korean state), Jin state, later becoming a part of ''Nangnoguk'' (), one of twelve statelets of the Byeonhan confederacy. According to the Samguk Sagi, ''History of the Three Kingdoms'', the region was called ''Handasa-gun'' (), then changed into ''Hadong-gun'' in 757 CE, during the reign of King Gyeongdeok of Silla. During the Goryeo dynasty, the area was known as ''Hadong-hyeon'' (). In 1414, during the reign of the Joseon-era Taejong of Joseon, King Taejong, it became known as ''Hanamhyeon'' () with ''Namhaehyeon'' (). It was raised to the status of ''Hadongdohobu'' () in 1740, in the thirtieth year of Sukjong of Joseon, King ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
