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Uintasaurus
''Camarasaurus'' ( ) was a genus of quadrupedal, herbivorous dinosaurs and is the most common North American sauropod fossil. Its fossil remains have been found in the Morrison Formation, dating to the Late Jurassic epoch ( Kimmeridgian to Tithonian stages), between 155 and 145 million years ago. ''Camarasaurus'' presented a distinctive cranial profile of a blunt snout and an arched skull that was remarkably square, typical of basal Macronarians. The name means "chambered lizard", referring to the hollow chambers, known as pleurocoels, in its cervical vertebrae ( Greek (') meaning "vaulted chamber", or anything with an arched cover, and (') meaning "lizard". ''Camarasaurus'' contains four species that are commonly recognized as valid: '' Camarasaurus grandis'', ''Camarasaurus lentus'', ''Camarasaurus lewisi'', and '' Camarasaurus supremus''. ''C. supremus'', the type species, is the largest and geologically youngest of the four. ''Camarasaurus'' is the type genus of Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camarasaurus Lentus
''Camarasaurus lentus'' is an extinct species of sauropod dinosaur that lived during the Jurassic period in what is now the western United States. It is one of the four valid species of the well-known genus ''Camarasaurus''. ''C. lentus'' fossils have been found in Wyoming, Colorado, and Utah. It is the species of ''Camarasaurus'' found in Dinosaur National Monument and the middle layers of the Morrison Formation. ''Camarasaurus lentus'' is among the best-known sauropod species, with many specimens known. A juvenile specimen of ''C. lentus'', CM 11338, is the most complete sauropod fossil ever discovered. Description Like other sauropods, ''Camarasaurus lentus'' was a large, long-necked quadruped. It closely resembled other species of ''Camarasaurus'' in its anatomy, and in particular was very similar to ''C. supremus''. It was of moderate size for the genus, being similar in size to ''C. grandis'', 20% smaller than ''C. supremus'', and slightly larger than ''C. lewisi''. Gregory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow. Life forms of the epoch This epoch is well known for many famous types of dinosau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleurocoel
Skeletal pneumaticity is the presence of air spaces within bones. It is generally produced during development by excavation of bone by pneumatic diverticula (air sacs) from an air-filled space, such as the lungs or nasal cavity. Pneumatization is highly variable between individuals, and bones not normally pneumatized can become pneumatized in pathological development. Cranial pneumaticity Pneumatization occurs in the skulls of mammals, crocodilians and birds among extant tetrapods. Pneumatization has been documented in extinct archosaurs including dinosaurs and pterosaurs. Pneumatic spaces include the paranasal sinuses and some of the mastoid cells. Postcranial pneumaticity Postcranial pneumaticity is found largely in certain archosaur groups, namely dinosaurs, pterosaurs, and birds. Vertebral pneumatization is widespread among saurischian dinosaurs, and some theropods have quite widespread pneumatization, for example '' Aerosteon riocoloradensis'' has pneumatization of the iliu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Fairfield Osborn
Henry Fairfield Osborn, Sr. (August 8, 1857 – November 6, 1935) was an American paleontologist, geologist and eugenics advocate. He was the president of the American Museum of Natural History for 25 years and a cofounder of the American Eugenics Society. Early life and education Family Henry Fairfield Osborn was born in Fairfield, Connecticut on August 8, 1857 in a family of distinction. He was the eldest son of shipping magnate and railroad tycoon William Henry Osborn and Virginia Reed ( née Sturges) Osborn. His maternal grandparents were Jonathan Sturges, a prominent New York businessman and arts patron who was a direct descendant of Jonathan Sturges, a U.S. Representative from Connecticut, and Mary Pemberton Cady, a direct descendant of prominent educator Ebenezer Pemberton. His maternal aunt Amelia Sturges, was the first wife of J. P. Morgan, but died of tuberculosis soon after their wedding. His younger brother was William Church Osborn, who served as presiden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Museum Of Natural History
The American Museum of Natural History (abbreviated as AMNH) is a natural history museum on the Upper West Side of Manhattan in New York City. In Theodore Roosevelt Park, across the street from Central Park, the museum complex comprises 26 interconnected buildings housing 45 permanent exhibition halls, in addition to a planetarium and a library. The museum collections contain over 34 million specimens of plants, animals, fossils, minerals, rocks, meteorites, human remains, and human cultural artifacts, as well as specialized collections for frozen tissue and genomic and astrophysical data, of which only a small fraction can be displayed at any given time. The museum occupies more than . AMNH has a full-time scientific staff of 225, sponsors over 120 special field expeditions each year, and averages about five million visits annually. The AMNH is a private 501(c)(3) organization. Its mission statement is: "To discover, interpret, and disseminate—through scientific research and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia
Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and the urban core of the Delaware Valley, the nation's seventh-largest and one of world's largest metropolitan regions, with 6.245 million residents . The city's population at the 2020 census was 1,603,797, and over 56 million people live within of Philadelphia. Philadelphia was founded in 1682 by William Penn, an English Quaker. The city served as capital of the Pennsylvania Colony during the British colonial era and went on to play a historic and vital role as the central meeting place for the nation's founding fathers whose plans and actions in Philadelphia ultimately inspired the American Revolution and the nation's inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garden Park, Colorado
Garden Park is a paleontological site in Fremont County, Colorado, known for its Jurassic dinosaurs and the role the specimens played in the infamous Bone Wars of the late 19th century. Located north of Cañon City, the name originates from the area providing vegetables to the miners at nearby Cripple Creek in the 19th century. Garden Park proper is a triangular valley surrounded by cliffs on the southeast and southwest and by mountains to the north; however, the name is also refers to the dinosaur sites on top and along the cliffs. The dinosaur sites now form thGarden Park Paleontological Resource Area which is overseen by the Bureau of Land Management. Geology Garden Park was formed by erosion of sedimentary rocks that have been distorted by uplift of the Rocky Mountains. The region is bisected by Four Mile Creek (also called Oil Creek), which has carved a canyon through the Mesozoic and Paleozoic sedimentary rocks. One of these Mesozoic strata is the Morrison Formation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cañon City, Colorado
Cañon City is a home rule municipality that is the county seat and the most populous municipality of Fremont County, Colorado, United States. The city population was 17,141 at the 2020 United States Census. Cañon City is the principal city of the Cañon City, CO Micropolitan Statistical Area and is a part of the Front Range Urban Corridor. Cañon City straddles the easterly flowing Arkansas River and is a popular tourist destination for sightseeing, whitewater rafting, and rock climbing. The city is known for its many public parks, fossil discoveries, Skyline Drive, The Royal Gorge railroad, the Royal Gorge, and extensive natural hiking paths. In 1994, the United States Board on Geographic Names approved adding the tilde to the official name of Cañon City, a change from Canon City as the official name in its decisions of 1906 and 1975. It is one of the few U.S. cities to have the Spanish Ñ in its name, others being La Cañada Flintridge, California; Española, New Mexico; Pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bone Wars
The Bone Wars, also known as the Great Dinosaur Rush, was a period of intense and ruthlessly competitive fossil hunting and discovery during the Gilded Age of American history, marked by a heated rivalry between Edward Drinker Cope (of the Academy of Natural Sciences of Philadelphia) and Othniel Charles Marsh (of the Peabody Museum of Natural History at Yale). Each of the two paleontologists used underhanded methods to try to outdo the other in the field, resorting to bribery, theft, and the destruction of bones. Each scientist also sought to ruin his rival's reputation and cut off his funding, using attacks in scientific publications. Their search for fossils led them west to rich bone beds in Colorado, Nebraska, and Wyoming. From 1877 to 1892, both paleontologists used their wealth and influence to finance their own expeditions and to procure services and dinosaur bones from fossil hunters. By the end of the Bone Wars, both men had exhausted their funds in the pursuit of paleon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Othniel Marsh
Othniel Charles Marsh (October 29, 1831 – March 18, 1899) was an American professor of Paleontology in Yale College and President of the National Academy of Sciences. He was one of the preeminent scientists in the field of paleontology. Among his legacies are the discovery or description of dozens of new species and theories on the origins of birds. Born into a modest family, Marsh was able to afford higher education thanks to the generosity of his wealthy uncle George Peabody. After graduating from Yale College in 1860 he travelled the world, studying anatomy, mineralogy and geology. He obtained a teaching position at Yale upon his return. From the 1870s to 1890s, he competed with rival paleontologist Edward Drinker Cope in a period of frenzied Western American expeditions known as the Bone Wars. Marsh's greatest legacy is the collection of Mesozoic reptiles, Cretaceous birds, and Mesozoic and Tertiary mammals that now constitute the backbone of the collections of Yale's Peabod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Drinker Cope
Edward Drinker Cope (July 28, 1840 – April 12, 1897) was an American zoologist, paleontologist, comparative anatomist, herpetologist, and ichthyologist. Born to a wealthy Quaker family, Cope distinguished himself as a child prodigy interested in science; he published his first scientific paper at the age of 19. Though his father tried to raise Cope as a gentleman farmer, he eventually acquiesced to his son's scientific aspirations. Cope married his cousin and had one child; the family moved from Philadelphia to Haddonfield, New Jersey, although Cope would maintain a residence and museum in Philadelphia in his later years. Cope had little formal scientific training, and he eschewed a teaching position for field work. He made regular trips to the American West, prospecting in the 1870s and 1880s, often as a member of United States Geological Survey teams. A personal feud between Cope and paleontologist Othniel Charles Marsh led to a period of intense fossil-finding competition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lourinhasaurus
''Lourinhasaurus'' (meaning "Lourinhã lizard") was an herbivorous sauropod dinosaur genus dating from Late Jurassic strata of Estremadura Province (historical), Estremadura, Portugal. Discovery The first find in 1949 by Harold Weston Robbins, a partial fossil skeleton found near Alenquer, Portugal, Alenquer, was in 1957 named ''Apatosaurus alenquerensis'' by Albert-Félix de Lapparent and Georges Zbyszewski. The specific name (zoology), specific name ''alenquerensis'' refers to the locality of Alenquer Municipality, Portugal, Alenquer. The species has subsequently been referred to other genera. In 1970 Rodney Steel renamed it ''Atlantosaurus alenquerensis'', in 1978 George Olshevsky coined a ''Brontosaurus alenquerensis''. John S. McIntosh, John Stanton McIntosh in 1990 proposed that it was a species of ''Camarasaurus'': ''Camarasaurus alenquerensis''. However, the find of another partial skeleton, ML 414, including a tooth and a hundred gastroliths, in co-eval strata near the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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