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Homo Naledi
'' Homo naledi'' is an Extinction, extinct species of archaic human discovered in 2013 in the Rising Star Cave system, Gauteng province, South Africa, part of the Cradle of Humankind, dating back to the Middle Pleistocene 335,000–236,000 years ago. The initial discovery comprises 1,550 specimens of bone, representing 737 different skeletal elements, and at least 15 different individuals. Despite this exceptionally high number of specimens, their classification with other ''Homo'' species remains unclear. Along with similarities to contemporary ''Homo'', they share several characteristics with the ancestral ''Australopithecus'' as well as early ''Homo'' (Mosaic evolution#Mosaic evolution (in hominin), mosaic evolution), most notably a small cranial capacity of 465–610 cm3 (28.4–37.2 cu in), compared with 1,270–1,330 cm3 (78–81 cu in) in modern humans. They are estimated to have averaged in height and in weight, yielding a small relative brain size, encephal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rising Star Cave
The Rising Star cave system (also known as Westminster or Empire cave) is located in the Malmani Subgroup, Malmani dolomites, in Bloubank River valley, about southwest of Swartkrans, part of the Cradle of Humankind World Heritage Site in South Africa. Recreational caving has occurred there since the 1960s. In 2015, fossils found there two years prior were determined to be a previously unknown extinct species of Hominini, hominin named ''Homo naledi''. Names In the 1980s, the names "Empire", "Westminster", and "Rising Star" were used interchangeably. The species's name, ''naledi'' (Sotho language, Sesotho for "star"), and the "Dinaledi Chamber" (incorporating the Sotho word for "stars")Sesotho ''dinaledi'' is a Sotho nouns#nc 10, class 10 plural noun built on the class 9 noun ''naledi'' "star" Bukantswe v.3 dictionary). were so named by members of the Rising Star Expedition in reference to the species and chamber's location in Rising Star Cave. A portion of the cave, used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinaledi Chamber
The Rising Star cave system (also known as Westminster or Empire cave) is located in the Malmani dolomites, in Bloubank River valley, about southwest of Swartkrans, part of the Cradle of Humankind World Heritage Site in South Africa. Recreational caving has occurred there since the 1960s. In 2015, fossils found there two years prior were determined to be a previously unknown extinct species of hominin named ''Homo naledi''. Names In the 1980s, the names "Empire", "Westminster", and "Rising Star" were used interchangeably. The species's name, ''naledi'' (Sesotho for "star"), and the "Dinaledi Chamber" (incorporating the Sotho word for "stars")Sesotho ''dinaledi'' is a class 10 plural noun built on the class 9 noun ''naledi'' "star" Bukantswe v.3 dictionary). were so named by members of the Rising Star Expedition in reference to the species and chamber's location in Rising Star Cave. A portion of the cave, used by the excavation team en route to the Dinaledi Chamber, is cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Pleistocene
The Chibanian, more widely known as the Middle Pleistocene (its previous informal name), is an Age (geology), age in the international geologic timescale or a Stage (stratigraphy), stage in chronostratigraphy, being a division of the Pleistocene Epoch within the ongoing Quaternary Period. The Chibanian name was officially ratified in January 2020. It is currently estimated to span the time between 0.7741 annum, Ma (774,100 years ago) and 0.129 Ma (129,000 years ago), also expressed as 774.1–129 ka. It includes the transition in palaeoanthropology from the Lower Paleolithic, Lower to the Middle Paleolithic over 300 ka. The Chibanian is preceded by the Calabrian (stage), Calabrian and succeeded by the Late Pleistocene. The beginning of the Chibanian is the Brunhes–Matuyama reversal, when the Earth's magnetic field last underwent reversal. Its end roughly coincides with the termination of the Penultimate Glacial Period and the onset of the Last Interglacial period (correspondin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industry (archaeology)
In the archaeology of the Stone Age, an industry or technocomplex is a typological classification of stone tools. An industry consists of a number of lithic assemblages, typically including a range of different types of tools, that are grouped together on the basis of shared technological or morphological characteristics. For example, the Acheulean industry includes hand-axes, cleavers, scrapers and other tools with different forms, but which were all manufactured by the symmetrical reduction of a bifacial core producing large flakes. Industries are usually named after a type site where these characteristics were first observed (e.g. the Mousterian industry is named after the site of Le Moustier). By contrast, Neolithic axeheads from the Langdale axe industry were recognised as a type well before the centre at Great Langdale was identified by finds of debitage and other remains of the production, and confirmed by petrography (geological analysis). The stone was q ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype Specimen
A holotype (Latin: ''holotypus'') is a single physical example (or illustration) of an organism used when the species (or lower-ranked taxon) was Species description, formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly ''Plebejus idas, Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany and mycology, an isotype is a duplicate of the holotype, generally pieces from the same individual plant or samples from the same genetic individual. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neanderthal
Neanderthals ( ; ''Homo neanderthalensis'' or sometimes ''H. sapiens neanderthalensis'') are an extinction, extinct group of archaic humans who inhabited Europe and Western and Central Asia during the Middle Pleistocene, Middle to Late Pleistocene. Neanderthal extinction occurred roughly 40,000 years ago with the immigration of modern humans (Cro-Magnons), but Neanderthals in Gibraltar may have persisted for thousands of years longer. The first recognised Neanderthal fossil, Neanderthal 1, was discovered in 1856 in the Neander Valley, Germany. At first, Neanderthal 1 was considered to be one of the racial hierarchy, lower races in accord with historical race concepts. As more fossils were discovered through the early 20th century, Neanderthals became characterised most especially by Marcellin Boule as a unique species of underdeveloped human. By the mid-20th century, human evolution was described as progressing from an apelike ancestor, through a "Neanderthal phase", ending ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sima De Los Huesos
The Sima de los Huesos hominins are a 430,000 year old population of "pre-Neanderthals" from the archaeological site of Atapuerca, archeological site of Atapuerca, Spain. They are in the "Neanderthal clade", but fall outside of ''Homo neanderthalensis''. When first published in 1993, these 29 individuals represented about 80% of the Middle Pleistocene human fossil record, and they preserve every bone in the human body. The unprecedented completeness of the remains sheds light on Neanderthal evolution, the classification of contemporary fossils, and the range of variation that could exist in a single Middle Pleistocene population. Exhumation of the Sima de los Huesos hominins began in the 1980s, under the direction of Emiliano Aguirre, and later Juan Luis Arsuaga, Eudald Carbonell, and José María Bermúdez de Castro. As a pre-Neanderthal population, the Sima de los Huesos hominins display a mosaic of classic Neanderthal traits (apomorphy and synapomorphy, apomorphies) as well as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ELife
''eLife'' is a not-for-profit, peer-reviewed, open access, scientific journal, science publisher for the Biomedicine, biomedical and life sciences. It was established at the end of 2012 by the Howard Hughes Medical Institute, Max Planck Society, and Wellcome Trust, following a workshop held in 2010 at the Janelia Farm Research Campus. Together, these organizations provided the initial funding to support the business and publishing operations. In 2016, the organizations committed US$26 million to continue publication of the journal. The most recent editor-in-chief was Michael Eisen (University of California, Berkeley). Eisen was fired in October 2023, a controversial decision which led at least five editors to resign in protest. eLife Deputy Editors Detlef Weigel and Timothy Behrens (neuroscientist), Tim Behrens were invited by the eLife Board of Directors to serve as co-Editors-in-Chief until the end of 2024. Editorial decisions are made largely by senior editors and members of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint
A joint or articulation (or articular surface) is the connection made between bones, ossicles, or other hard structures in the body which link an animal's skeletal system into a functional whole.Saladin, Ken. Anatomy & Physiology. 7th ed. McGraw-Hill Connect. Webp.274/ref> They are constructed to allow for different degrees and types of movement. Some joints, such as the knee, elbow, and shoulder, are self-lubricating, almost frictionless, and are able to withstand compression and maintain heavy loads while still executing smooth and precise movements. Other joints such as suture (joint), sutures between the bones of the skull permit very little movement (only during birth) in order to protect the brain and the sense organs. The connection between a tooth and the jawbone is also called a joint, and is described as a fibrous joint known as a gomphosis. Joints are classified both structurally and functionally. Joints play a vital role in the human body, contributing to movement, sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolinite, ). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide. Clays develop plasticity (physics), plasticity when wet but can be hardened through Pottery#Firing, firing. Clay is the longest-known ceramic material. Prehistoric humans discovered the useful properties of clay and used it for making pottery. Some of the earliest pottery shards have been radiocarbon dating, dated to around 14,000 BCE, and Clay tablet, clay tablets were the first known writing medium. Clay is used in many modern industrial processes, such as paper making, cement production, and chemical filtration, filtering. Between one-half and two-thirds of the world's population live or work in buildings made with clay, often baked into brick, as an essenti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Journal Of Science
The ''South African Journal of Science'' is an open access, multidisciplinary academic journal published bimonthly by the Academy of Science of South Africa. The journal has a 2021 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 2.134. History The journal was established in 1903 as the ''Proceedings of the Annual Meetings of the South African Association for the Advancement of Science''. The annual volume became a monthly publication in August 1947. Abstracting and indexing The journal is abstracted and indexed in: *Scopus *Science Citation Index Expanded *Current Contents/Agriculture, Biology & Environmental Sciences *Current Contents/Life Sciences *The Zoological Record *BIOSIS Previews References External links * * Multidisciplinary academic journ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underground Astronauts
The Underground Astronauts is the name given to a group of six scientists, Hannah Morris, Marina Elliott, Becca Peixotto, Alia Gurtov, K. Lindsay (then Eaves) Hunter, and Elen Feuerriegel, who excavated the bones of ''Homo naledi'' from the Dinaledi Chamber of the Rising Star cave system in Gauteng, South Africa. The six women were selected by the expedition leader, Lee Rogers Berger, who posted a message on Facebook asking for scientists with experience in paleontological excavations and caving, and were slender enough for cramped spaces. Within ten days of the post, Berger had received almost sixty applicants and chose six scientists to make up his expedition team. The Rising Star Expedition In November 2013, the National Geographic Society and the University of the Witwatersrand funded an expedition called the Rising Star Expedition for a twenty-one day excavation at the Rising Star cave system in Gauteng, followed by a second expedition in March 2014 for a 4-week exc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
