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Kents Cavern 4
The Kents Cavern 4 maxilla is a human fossil, consisting of a right canine, third premolar, and first molar as well as the bone holding them together including a small piece of palate. The fossil was found in 1927 at Kents Cavern, a limestone cave in Torquay, Devon, England. The Maxilla was uncovered at a depth of and was located directly beneath a key ‘granular stalagmite’ at the site, which was used as a datum during excavations undertaken between 1926 and 1941 by the Torquay Natural History Society.Higham, T. F. G., Jacobi, R. M. & Bronk Ramsey, C. AMS radiocarbon dating of ancient bone using ultrafiltration. Radiocarbon 48, 179–195 (2006) The discovery of the KC4 maxilla was important because it became the earliest direct dated Anatomically Modern human (AMH) fossil yet discovered from a Northwestern European site.Higham, Tom, et al. "The Earliest Evidence for Anatomically Modern Humans In Northwestern Europe." Nature 479.7374 (2011): 521-524. Moreover the date obtained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kents Cavern
Kents Cavern is a cave system in Torquay, Devon, England. It is notable for its archaeological and geological features. The cave system is open to the public and has been a geological Site of Special Scientific Interest since 1952 and a Scheduled Ancient Monument since 1957. Prehistory The caverns and passages were formed in the early Pleistocene period by water action, and have been occupied by one of at least eight separate, discontinuous native populations to have inhabited the British Isles. The other key paleolithic sites in the UK are Happisburgh, Pakefield, Boxgrove, Swanscombe, Pontnewydd, Paviland, Creswell Crags and Gough's Cave. Kents Cavern 4 A prehistoric upper jawbone (maxilla) fragment was discovered in the cavern during a 1927 excavation by the Torquay Natural History Society, and named ''Kents Cavern 4.'' The specimen is on display at the Torquay Museum. In 1989 the fragment was radiocarbon dated to 36,400–34,700 years BP, but a 2011 study that dated fossi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitochondrial DNA
Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA is only a small portion of the DNA in a eukaryotic cell; most of the DNA can be found in the cell nucleus and, in plants and algae, also in plastids such as chloroplasts. Human mitochondrial DNA was the first significant part of the human genome to be sequenced. This sequencing revealed that the human mtDNA includes 16,569 base pairs and encodes 13 proteins. Since animal mtDNA evolves faster than nuclear genetic markers, it represents a mainstay of phylogenetics and evolutionary biology. It also permits an examination of the relatedness of populations, and so has become important in anthropology and biogeography. Origin Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1927 In England
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album ''Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipknot. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Devon
Devon is a county in south west England, bordering Cornwall to the west with Dorset and Somerset to the east. There is evidence of occupation in the county from Stone Age times onward. Its recorded history starts in the Roman period when it was a civitas. It was then a separate kingdom for a number of centuries until it was incorporated into early England. It has remained a largely agriculture based region ever since though tourism is now very important. Prehistory Devon was one of the first areas of Great Britain settled following the end of the last ice age. Kents Cavern in Torbay is one of the earliest places in England known to have been occupied by modern man. Dartmoor is thought to have been settled by Mesolithic hunter-gatherer peoples from about 6000 BC, and they later cleared much of the oak forest, which regenerated as moor. In the Neolithic era, from about 3500 BC, there is evidence of farming on the moor, and also building and the erection of monuments, using t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetics In The United Kingdom
Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene. Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism (e.g. dominance), and within the context ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossils Of England
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] |
Fossil Taxa Described In 1927
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] |
List Of Human Evolution Fossils
The following tables give an overview of notable finds of Hominini, hominin fossils and Skeleton, remains relating to human evolution, beginning with the formation of the tribe Hominini (the divergence of the Chimpanzee–human last common ancestor, human and chimpanzee lineages) in the late Miocene, roughly 7 to 8 million years ago. As there are thousands of fossils, mostly fragmentary, often consisting of single bones or isolated teeth with complete skulls and skeletons rare, this overview is not complete, but show some of the most important findings. The fossils are arranged by approximate age as determined by radiometric dating and/or incremental dating and the species name represents current consensus; if there is no clear scientific consensus the other possible classifications are indicated. The early fossils shown are not considered ancestors to ''Homo sapiens'' but are closely related to ancestors and are therefore important to the study of the lineage. After 1.5 million ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CT Scan
A computed tomography scan (CT scan; formerly called computed axial tomography scan or CAT scan) is a medical imaging technique used to obtain detailed internal images of the body. The personnel that perform CT scans are called radiographers or radiology technologists. CT scanners use a rotating X-ray tube and a row of detectors placed in a gantry (medical), gantry to measure X-ray Attenuation#Radiography, attenuations by different tissues inside the body. The multiple X-ray measurements taken from different angles are then processed on a computer using tomographic reconstruction algorithms to produce Tomography, tomographic (cross-sectional) images (virtual "slices") of a body. CT scans can be used in patients with metallic implants or pacemakers, for whom magnetic resonance imaging (MRI) is Contraindication, contraindicated. Since its development in the 1970s, CT scanning has proven to be a versatile imaging technique. While CT is most prominently used in medical diagnosis, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNA Sequencing
DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. The advent of rapid DNA sequencing methods has greatly accelerated biological and medical research and discovery. Knowledge of DNA sequences has become indispensable for basic biological research, DNA Genographic Projects and in numerous applied fields such as medical diagnosis, biotechnology, forensic biology, virology and biological systematics. Comparing healthy and mutated DNA sequences can diagnose different diseases including various cancers, characterize antibody repertoire, and can be used to guide patient treatment. Having a quick way to sequence DNA allows for faster and more individualized medical care to be administered, and for more organisms to be identified and cataloged. The rapid speed of sequencing attained with modern D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woolly Rhino
The woolly rhinoceros (''Coelodonta antiquitatis'') is an extinct species of rhinoceros that was common throughout Europe and Asia during the Pleistocene epoch and survived until the end of the last glacial period. The woolly rhinoceros was a member of the Pleistocene megafauna. The woolly rhinoceros was covered with long, thick hair that allowed it to survive in the extremely cold, harsh mammoth steppe. It had a massive hump reaching from its shoulder and fed mainly on herbaceous plants that grew in the steppe. Mummified carcasses preserved in permafrost and many bone remains of woolly rhinoceroses have been found. Images of woolly rhinoceroses are found among cave paintings in Europe and Asia. Taxonomy Woolly rhinoceros remains have been known long before the species was described, and were the basis for some mythical creatures. Native peoples of Siberia believed their horns were the claws of giant birds. A rhinoceros skull was found in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torquay
Torquay ( ) is a seaside town in Devon, England, part of the unitary authority area of Torbay. It lies south of the county town of Exeter and east-north-east of Plymouth, on the north of Tor Bay, adjoining the neighbouring town of Paignton on the west of the bay and across from the fishing port of Brixham. The town's economy, like Brixham's, was initially based upon fishing and agriculture, but in the early 19th century it began to develop into a fashionable seaside resort. Later, as the town's fame spread, it was popular with Victorian society. Renowned for its mild climate, the town earned the nickname the English Riviera. The writer Agatha Christie was born in the town and lived at Ashfield in Torquay during her early years. There is an "Agatha Christie Mile", a tour with plaques dedicated to her life and work. The poet Elizabeth Barrett Browning lived in the town from 1837 to 1841 on the recommendation of her doctor in an attempt to cure her of a disease which is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
