|
James Ross Island
James Ross Island is a large island off the southeast side and near the northeastern extremity of the Antarctic Peninsula, from which it is separated by Prince Gustav Channel. Rising to , it is irregularly shaped and extends in a north–south direction. It was charted in October 1903 by the Swedish Antarctic Expedition under Otto Nordenskiöld, who named it for Sir James Clark Ross, the leader of a British expedition to this area in 1842 that discovered and roughly charted a number of points along the eastern side of the island. The style, "James" Ross Island is used to avoid confusion with the more widely known Ross Island in McMurdo Sound. It is one of several islands around the peninsula known as Graham Land, which is closer to South America than any other part of that continent. The island was connected to the Antarctic mainland by an ice shelf until 1995, when the ice shelf collapsed, making the Prince Gustav Channel passable for the first time. Mendel Polar Station, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperobator Antarcticus
''Imperobator'' ("powerful warrior") is a genus of Paraves, paravian theropod that lived during the Maastrichtian stage of the Late Cretaceous period in what is now Antarctica. It contains a single species, ''I. antarcticus'', recovered from the Snow Hill Island Formation. Before its description, it was informally nicknamed the "Naze Dromaeosauridae, dromaeosaur", despite the lack of a "sickle claw" characteristic of the group. In 2019, the describing authors suggested that ''Imperobator'' was about the same size as ''Utahraptor''. Discovery and naming The only described species is known from a single specimen, UCMP 276000, which was first uncovered in 2003 at the early Maastrichtian-aged Cape Lamb Member of the Snow Hill Island Formation on James Ross Island, Antarctica. The Cape Lamb Member has been dated to the early Maastrichtian, about 71 million years ago. UCMP 276000 consists of an incomplete isolated left Pes (anatomy), pes including a portion of the tibia, an incomplete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the lowest measured temperature on Earth, . The coastal regions can reach temperatures over in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctopelta Oliveroi
''Antarctopelta'' ( ; meaning 'Antarctic shield') was a genus of ankylosaurian dinosaur with one known species, ''A. oliveroi'', which lived in Antarctica during the Late Cretaceous Period. It was a medium-sized ankylosaur, reaching 4 meters (13 ft) in length or more, and showed characteristics of two different families, making more precise classification difficult. The single known fossil specimen was discovered on James Ross Island in 1986, constituting the first dinosaur remains ever discovered on Antarctica, although it is the second dinosaur from the continent to be formally named. Discovery and naming The holotype (specimen used as the basis for the taxon) is the only known example of this genus and species, and was the first dinosaur ever found in Antarctica. It consists of three isolated teeth, part of the lower jaw with another tooth ''in situ'', some other skull fragments, vertebrae (neck, back, hips and tail), some partial limb bones (scapula, ilium and femur), t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryolophosaurus
''Cryolophosaurus'' ( or ; "CRY-oh-loaf-oh-SAWR-us") is a genus of large theropod dinosaur known from only a single species ''Cryolophosaurus ellioti'', from the early Jurassic of Antarctica. It was one of the largest theropods of the Early Jurassic, with the subadult being estimated to have reached long and weighed . ''Cryolophosaurus'' was first excavated from Antarctica's Early Jurassic, Pliensbachian aged Hanson Formation, formerly the upper Falla Formation, by paleontologist Dr. William Hammer in 1991. It was the first carnivorous dinosaur to be discovered in Antarctica and the first non-avian dinosaur from the continent to be officially named. The sediments in which its fossils were found have been dated at ~194 to 188 million years ago, representing the Early Jurassic Period. ''Cryolophosaurus'' is known from a skull, a femur and other material, all of which have caused its classification to vary greatly. The femur possesses many primitive characteristics that have cla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Utahraptor
''Utahraptor'' (meaning "Utah's thief") is a genus of large dromaeosaurid dinosaur that lived in North America during the Early Cretaceous period. It was a heavy-built, ground-dwelling, bipedal carnivore. It contains a single species, ''Utahraptor ostrommaysi'', which is one of the largest-known members of the family Dromaeosauridae, measuring long and weighing . Discovery and naming The first specimens of ''Utahraptor'' were found in 1975 by Jim Jensen in the Dalton Wells Quarry in east-central Utah, near the town of Moab, but did not receive much attention. After a find of a large foot-claw by Carl Limone in October 1991, James Kirkland, Robert Gaston, and Donald Burge uncovered further remains of ''Utahraptor'' in 1991 in the Gaston Quarry in Grand County, Utah, within the Yellow Cat and Poison Strip members of the Cedar Mountain Formation. The holotype of ''Utahraptor'', CEUM 184v.86 consists of a second pedal ungual, with potentially assigned elements from other specim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Cretaceous
The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the Latin word for the white limestone known as chalk. The chalk of northern France and the white cliffs of south-eastern England date from the Cretaceous Period. Climate During the Late Cretaceous, the climate was warmer than present, although throughout the period a cooling trend is evident. The tropics became restricted to equatorial regions and northern latitudes experienced markedly more seasonal climatic conditions. Geography Due to plate tectonics, the Americas were gradually moving westward, causing the Atlantic Ocean to expand. The Western Interior Seaway divided North America into eastern and western halves; Appalachia and Laramidia. India maintained a northward course towards Asia. In the Southern Hemisphere, Australia and Ant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 carnivorous, although a number of theropod groups evolved to become herbivores and omnivores. Theropods first appeared during the Carnian age of the late Triassic period 231.4 million years ago ( Ma) and included all the large terrestrial carnivores from the Early Jurassic until at least the close of the Cretaceous, about 66 Ma. In the Jurassic, birds evolved from small specialized coelurosaurian theropods, and are today represented by about 10,500 living species. Biology Diet and teeth Theropods exhibit a wide range of diets, from insectivores to herbivores and carnivores. Strict carnivory has always been considered the ancestral diet for theropods as a group, and a wider variety of diets was historically considered a characteri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Dakota School Of Mines & Technology
The South Dakota School of Mines & Technology (South Dakota Mines, SD Mines, or SDSM&T) is a public university in Rapid City, South Dakota. It is governed by the South Dakota Board of Regents and was founded in 1885. South Dakota Mines offers bachelor’s, master’s, and doctoral degrees. History The cornerstone of the first School of Mines (then known as the Dakota School of Mines) building was dedicated on August 19, 1885, with the first classes being held February 21, 1887. John W. Hancher received the first bachelor of science degree at the first commencement on May 31, 1888. The school became known as the South Dakota School of Mines in 1889 after admission of South Dakota as a state to the United States. The School of Mines presented exhibits during the 1904 World's Fair and the first licensed radio station in the state of South Dakota was established on campus in December 1911, a full decade before WCAT (the precursor the current campus station KTEQ-FM). The first "M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Mary's College Of California
Saint Mary's College of California is a Private college, private Catholic Church, Catholic college in Moraga, California. Established in 1863, it is affiliated with the Catholic Church and administered by the De La Salle Brothers. The college offers undergraduate and graduate programs with a total student count at under 4,000 . History St. Mary's College began in 1863 as a Diocese, diocesan college for boys established by the Most Rev. Joseph Alemany, a member of the Dominican Order, Dominicans and the first archbishop of San Francisco. One of its first donors was Mary Ellen Pleasant, a famed Black Catholicism, Black Catholic philanthropist who gave the school roughly $10,000 in today's money to help get the school off the ground. Unhappy with the Roman Catholic Archdiocese of San Francisco, archdiocese's operation of the college, Archbishop Alemany applied for assistance from Holy See, Rome and in 1868 St. Mary's College was handed over to the De La Salle Brothers, De La Sal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleontologist
Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossils to classify organisms and study their interactions with each other and their environments (their paleoecology). Paleontological observations have been documented as far back as the 5th century BC. The science became established in the 18th century as a result of Georges Cuvier's work on comparative anatomy, and developed rapidly in the 19th century. The term itself originates from Greek (, "old, ancient"), (, ( gen. ), "being, creature"), and (, "speech, thought, study"). Paleontology lies on the border between biology and geology, but differs from archaeology in that it excludes the study of anatomically modern humans. It now uses techniques drawn from a wide range of sciences, including biochemistry, mathematics, and engineering. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Ross Island Captured By NASA Photographer James Ross
James is a common English language surname and given name: *James (name), the typically masculine first name James * James (surname), various people with the last name James James or James City may also refer to: People * King James (other), various kings named James * Saint James (other) * James (musician) * James, brother of Jesus Places Canada * James Bay, a large body of water * James, Ontario United Kingdom * James College, a college of the University of York United States * James, Georgia, an unincorporated community * James, Iowa, an unincorporated community * James City, North Carolina * James City County, Virginia ** James City (Virginia Company) ** James City Shire * James City, Pennsylvania * St. James City, Florida Arts, entertainment, and media * ''James'' (2005 film), a Bollywood film * ''James'' (2008 film), an Irish short film * ''James'' (2022 film), an Indian Kannada-language film * James the Red Engine, a character in ''Thomas the Tank En ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campanian
The Campanian is the fifth of six ages of the Late Cretaceous Epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campanian spans the time from 83.6 (± 0.2) to 72.1 (± 0.2) million years ago. It is preceded by the Santonian and it is followed by the Maastrichtian. The Campanian was an age when a worldwide sea level rise covered many coastal areas. The morphology of some of these areas has been preserved: it is an unconformity beneath a cover of marine sedimentary rocks. Etymology The Campanian was introduced in scientific literature by Henri Coquand in 1857. It is named after the French village of Champagne in the department of Charente-Maritime. The original type locality was a series of outcrop near the village of Aubeterre-sur-Dronne in the same region. Definition The base of the Campanian Stage is defined as a place in the stratigraphic column wher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
