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Lehner Mammoth-Kill Site
The Lehner Mammoth-Kill Site is in southern Arizona (Cochise County) on the west bank of the San Pedro River 1.5 miles southwest of the town of Hereford. It is significant for its association with evidence that mammoths were killed here by Paleo-Indians 11,000 to 12,000 years before present. The Lehner Mammoth-Kill Site was declared a National Historic Landmark in 1967. In 1988, Mr. and Mrs. Lehner donated the site to the Bureau of Land Management for the benefit and education of the public. Archaeology In 1952, Ed Lehner discovered extinct mammoth bone fragments on his ranch, at the locality now known as the Lehner Mammoth-Kill Site. He notified the Arizona State Museum, and a summer of heavy rains in 1955 exposed more bones. Excavations, led by William W. Wasley and Emil Haury, took place in 1955–56, and again in 1974–75. In the initial effort, thirteen fluted projectile points, with 2 damaged, and 8 stone tools were found as well as 9 mammoth remains, one bison, a hors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hereford, Arizona
Hereford is a populated place in Cochise County along the San Pedro Riparian National Conservation Area in the southern part of the U.S. state of Arizona. It is southeast of Sierra Vista and is a part of the Sierra Vista-Douglas micropolitan area. The elevation is 4,193 feet at the location of the original townsite at the far eastern end of the unincorporated area; the residential area runs for another 8 miles west from this location, blending into the unincorporated area of Nicksville at an elevation of approximately 4800 feet. Hereford Station Post Office is located at the far western end of Nicksville, at the foot of the Huachuca Mountains.''Cochise County'', Dex: Official Directory, CenturyLink, 2014, pg 1 History Founded in 1878, the community was named after Frank Hereford, who was a friend of the town's founder, and a distinguished local attorney. It was where cowboys Frank McLaury and Tom McLaury first met and became associated with Ike Clanton, in 1878. The two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiocarbon Date
Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon. The method was developed in the late 1940s at the University of Chicago by Willard Libby. It is based on the fact that radiocarbon () is constantly being created in the Earth's atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and thereafter the amount of it contains begins to decrease as the undergoes radioactive decay. Measuring the amount of in a sample from a dead plant or animal, such as a piece of wood or a fragment of bone, provides information that can be used to calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaeological Sites On The National Register Of Historic Places In Arizona
Archaeology or archeology is the study of human activity through the recovery and analysis of material culture. The archaeological record consists of Artifact (archaeology), artifacts, architecture, biofact (archaeology), biofacts or ecofacts, archaeological site, sites, and cultural landscapes. Archaeology can be considered both a social science and a branch of the humanities. It is usually considered an independent academic discipline, but may also be classified as part of anthropology (in North America – the four-field approach), history or geography. The discipline involves Survey (archaeology), surveying, Archaeological excavation, excavation, and eventually Post excavation, analysis of data collected, to learn more about the past. In broad scope, archaeology relies on cross-disciplinary research. Archaeologists study human prehistory and history, from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-Columbian Archaeological Sites
In the history of the Americas, the pre-Columbian era, also known as the pre-contact era, or as the pre-Cabraline era specifically in Brazil, spans from the initial peopling of the Americas in the Upper Paleolithic to the onset of European colonization, which began with Christopher Columbus's voyage in 1492. This era encompasses the history of Indigenous cultures prior to significant European influence, which in some cases did not occur until decades or even centuries after Columbus's arrival. During the pre-Columbian era, many civilizations developed permanent settlements, cities, agricultural practices, civic and monumental architecture, major earthworks, and complex societal hierarchies. Some of these civilizations had declined by the time of the establishment of the first permanent European colonies, around the late 16th to early 17th centuries, and are known primarily through archaeological research of the Americas and oral histories. Other civilizations, contemporan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenozoic Paleontological Sites Of North America
The Cenozoic Era ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterized by the dominance of mammals, insects, birds and angiosperms (flowering plants). It is the latest of three geological eras of the Phanerozoic Eon, preceded by the Mesozoic and Paleozoic. The Cenozoic started with the Cretaceous–Paleogene extinction event, when many species, including the non-avian dinosaurs, became extinct in an event attributed by most experts to the impact of a large asteroid or other celestial body, the Chicxulub impactor. The Cenozoic is also known as the Age of Mammals because the terrestrial animals that dominated both hemispheres were mammalsthe eutherians (placentals) in the Northern Hemisphere and the metatherians (marsupials, now mainly restricted to Australia and to some extent South America) in the Southern Hemisphere. The extinction of many groups allowed mammals and birds to greatly diversify so that large mammal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Native American History Of Arizona
Native may refer to: People * '' Jus sanguinis'', nationality by blood * '' Jus soli'', nationality by location of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (other) In arts and entertainment * Native (band), a French R&B band * Native (comics), a character in the X-Men comics universe * ''Native'' (album), a 2013 album by OneRepublic * ''Native'' (2016 film), a British science fiction film * ''The Native'', a Nigerian music magazine In science * Native (computing), software or data formats supported by a certain system * Native language, the language(s) a person has learned from birth * Native metal, any metal that is found in its metallic form, either pure or as an alloy, in nature * Native species, a species whose presence in a region is the result of only natural processes * List of Australian plants termed "native", whose common name is of the form "native . . . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek () 'most' and (; Latinized as ) 'new'. The aridification and cooling trends of the preceding Neogene were continued in the Pleistocene. The climate was strongly variable depending on the glacial cycle, oscillating between cold Glacial period, glacial periods and warmer Interglacial, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clovis Sites
Clovis may refer to: People * Clovis (given name), the early medieval (Frankish) form of the name Louis ** Clovis I (c. 466 – 511), the first king of the Franks to unite all the Frankish tribes under one ruler ** Clovis II (c. 634 – c. 657), king of Neustria and Burgundy and first of the ** Clovis III (reigned 675–676), king of Austrasia, considered a usurper by some ** Clovis IV (c. 677–694), boy king of the Franks from 691 until 694 ** Clovis (died 580), son of Chilperic I and Audovera, assassinated by his father and stepmother ** Clóvis (footballer, born 1937), Clóvis Pinheiro dos Santos, Brazilian footballer ** Clóvis (footballer, born 1970), Clóvis Bento da Cruz, Brazilian football striker * Anzick-1, a prehistoric person sometimes referred to as the "Clovis Boy" or "Clovis Child" because of his association with Clovis culture. Places * Clovis, California ** Clovis Unified School District, serving Clovis and Fresno * Clovis, New Mexico ** Clovis Municipal Scho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lehner Bone-bed,1955
Lehner is a surname. It derives from the Middle High German verb ''lehen'' "to hold land as a feudal tenant", and was once used to indicate a person's status as a land-holder. Persons with this surname include: * Christine Lehner (born 1952), American novelist and short story writer * Daniel Lehner (born 1994), Austrian racing cyclist * Edward H. Lehner (born 1933), American politician * Ernst Lehner (1912–1986), German footballer * Eugene Lehner (1906–1997), Hungarian violist and music educator * Gerald Lehner (born 1963), Austrian journalist and author * Gerald Lehner (born 1968), Austrian football referee * Helmuth Lehner (born 1968), Austrian metal musician * Hugo Lehner (1902–1952), Swiss alpine guide and skier * Joseph Lehner (1912–2013), American mathematician * Karl-Heinz Lehner, Austrian operatic baritone * Katharina Lehner (born 1990), German mixed martial artist * Mark Lehner, American archaeologist * Otto Lehner (1898–1977), Swiss cyclist * Paul Lehner (1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naco Mammoth Kill Site
The Naco Mammoth Kill Site is an archaeological site in southeast Arizona, 1 mile northwest of Naco in Cochise County. The site was reported to the Arizona State Museum in September 1951 by Marc Navarrete, a local resident, after his father found two Clovis points in Greenbush Draw (eroded by the Greenbush Creek, a tributary of the San Pedro river), while digging out the fossil bones of a mammoth. Emil Haury excavated the Naco mammoth site in April 1952. In only five days, Haury recovered the remains of a Columbian Mammoth in association with 8 Clovis points (including the 2 originally found by the Navarettes). The excavator believed the assemblage to date from about 10,000 years Before Present. An additional point was found in the arroyo upstream. The Naco site was the first Clovis mammoth kill association to be identified in Arizona. An additional, unpublished, second excavation occurred in 1953 which doubled the area of the original work and found bones from a 2nd mammoth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Work Of The US Government
A work of the United States government is defined by the United States copyright law, as "a work prepared by an officer or employee of the United States Government as part of that person's official duties".: "A 'work of the United States Government' is a work prepared by an officer or employee of the United States Government as part of that person's official duties." Under section 105 of the Copyright Act of 1976,. such works are not entitled to domestic copyright protection under U.S. law and are therefore in the public domain. This act only applies to U.S. domestic copyright as that is the extent of U.S. ''federal'' law. The U.S. government asserts that it can still hold the copyright to those works in other countries. Publication of an otherwise protected work by the U.S. government does not put that work in the public domain. For example, government publications may include works copyrighted by a contractor or grantee; copyrighted material assigned to the U.S. Government; o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Domain
The public domain (PD) consists of all the creative work to which no Exclusive exclusive intellectual property rights apply. Those rights may have expired, been forfeited, expressly Waiver, waived, or may be inapplicable. Because no one holds the exclusive rights, anyone can legally use or reference those works without permission. As examples, the works of William Shakespeare, Ludwig van Beethoven, Miguel de Cervantes, Zoroaster, Lao Zi, Confucius, Aristotle, L. Frank Baum, Leonardo da Vinci and Georges Méliès are in the public domain either by virtue of their having been created before copyright existed, or by their copyright term having expired. Some works are not covered by a country's copyright laws, and are therefore in the public domain; for example, in the United States, items excluded from copyright include the formulae of Classical mechanics, Newtonian physics and cooking recipes. Other works are actively dedicated by their authors to the public domain (see waiver) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
