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Medicine Rocks State Park
Medicine Rocks State Park is a park owned by the state of Montana in the United States. It is located about west-southwest of Baker, Montana, and north of Ekalaka, Montana. The park is named for the "Medicine Rocks," a series of sandstone pillars similar to Hoodoo (geology), hoodoos some high with eerie undulations, holes, and tunnels in them.McRae and Jewell, ''Montana,'' 2009, p. 303.Hawthorn, ''Rocky Mountain States,'' 2001, p. 615. The rocks contain numerous examples of Native Americans of the United States, Native American rock art and are considered a sacred place by Plains Indians.Haney, ''Badlands of the High Plains,'' 2001, p. 37. As a young rancher, future President of the United States, president Theodore Roosevelt said Medicine Rocks was "as fantastically beautiful a place as I have ever seen." The park is in size, sits at in elevation, and is managed by the Montana Department of Fish, Wildlife and Parks. It was listed on the National Register of Historic Places in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carter County, Montana
Carter County is a County (United States), county located in the U.S. state of Montana. As of the 2020 United States census, 2020 census, the population was 1,415, making it the seventh-least populous county in Montana. The county seat is Ekalaka, Montana, Ekalaka. History Carter County was named for Thomas H. Carter, Thomas Henry Carter, the state's first congressman (representative in Congress from the Montana Territory, followed by first representative from the state of Montana to the US House of Representatives). Prior to settlement the land of Carter County was occupied by the Sioux Indians, Sioux tribe. Geography According to the United States Census Bureau, the county has a total area of , of which is land and (0.2%) is water. Medicine Rocks State Park is located 14 miles north of Ekalaka. Weathering has given the rocks an unusual texture. The site was used by Indian hunting parties. Adjacent counties * Powder River County, Montana, Powder River County - west * Cust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleocene
The Paleocene, ( ) or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name is a combination of the Ancient Greek ''palaiós'' meaning "old" and the Eocene Epoch (which succeeds the Paleocene), translating to "the old part of the Eocene". The epoch is bracketed by two major events in Earth's history. The K–Pg extinction event, brought on by Chicxulub impact, an asteroid impact and possibly volcanism, marked the beginning of the Paleocene and killed off 75% of living species, most famously the non-avian dinosaurs. The end of the epoch was marked by the Paleocene–Eocene Thermal Maximum (PETM), which was a major climatic event wherein about 2,500–4,500 gigatons of carbon were released into the atmosphere and ocean systems, causing a spike in global temperatures and ocean acidification. In the Pal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arikara People
Arikara (), also known as Sahnish, ''Mandan, Hidatsa, and Arikara Nation.'' (Retrieved Sep 29, 2011) Arikaree, Ree, or Hundi, are a tribe of Native Americans in . Today, they are enrolled with the and the as the federally recogni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gros Ventre
The Gros Ventre ( , ; meaning "big belly"), also known as the Aaniiih, A'aninin, Haaninin, Atsina, and White Clay, are a historically Algonquian-speaking Native American tribe located in north central Montana. Today the Gros Ventre people are enrolled in the Fort Belknap Indian Community of the Fort Belknap Reservation of Montana, a federally recognized tribe with 3,682 enrolled members, that also includes Assiniboine people or Nakoda people, the Gros Ventre's historical enemies. The Fort Belknap Indian Reservation is in the northernmost part of Montana, just south of the small town of Harlem, Montana. Chiefs: The Belly Government Council Name The tribal self-name (adapted as ''A'aninin'', ''Aaniiih'', or ''Haaninin'') means "White Clay People". The French used the term ''Gros Ventre'', which was mistakenly interpreted from their sign language. They were once known as the Gros Ventres of the Prairies, while the Hidatsa people were once called the Gros Ventres of the Misso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plains Indians
Plains Indians or Indigenous peoples of the Great Plains and Canadian Prairies are the Native American tribes and First Nation band governments who have historically lived on the Interior Plains (the Great Plains and Canadian Prairies) of North America. While hunting-farming cultures have lived on the Great Plains for centuries prior to European contact, the region is known for the horse cultures that flourished from the 17th century through the late 19th century. Their historic nomadism and armed resistance to domination by the government and military forces of Canada and the United States have made the Plains Indian culture groups an archetype in literature and art for Native Americans everywhere. The Plains tribes are usually divided into two broad classifications which overlap to some degree. The first group became a fully nomadic horse culture during the 18th and 19th centuries, following the vast herds of American bison, although some tribes occasionally engaged in ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amherst College
Amherst College ( ) is a private liberal arts college in Amherst, Massachusetts. Founded in 1821 as an attempt to relocate Williams College by its then-president Zephaniah Swift Moore, Amherst is the third oldest institution of higher education in Massachusetts. The institution was named after the town, which in turn had been named after Jeffery, Lord Amherst, Commander-in-Chief of British forces of North America during the French and Indian War. Originally established as a men's college, Amherst became coeducational in 1975. Amherst is an exclusively undergraduate four-year institution; 1,971 students were enrolled in fall 2021. Admissions is highly selective, and it frequently ranks at or near the top in most rankings of liberal arts schools. Students choose courses from 41 major programs in an open curriculum and are not required to study a core curriculum or fulfill any distribution requirements; students may also design their own interdisciplinary major. Amherst competes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baiotomeus
''Baiotomeus'' is a genus of mammals from the extinct order of Multituberculata. It is known from the Paleocene of North America. The genus ''Baiotomeus'' was formally named by Krause in 1987 ( Krause, 1987), and has also been known as ''Mimetodon'' (partly), ''Neoplagiaulax'' (partly), and ''Ptilodus'' (partly). Species ''B. douglassi'' ''Baiotomeus douglassi'' is a fairly substantial multituberculate weighing almost 200 g. Remains have been found in the Fort Union Formation of Montana and Porcupine Hills Formation of Alberta, Canada. The holotype specimen hails from Wyoming in the United States, in strata of the Gidley Quarry dated to the Torrejonian stage of the Paleocene. The species was originally named ''Ptilodus douglassi'' by Simpson in 1935 ( Simpson, 1935), but it has been reclassified several times: * ''Mimetodon douglassi'' in 1940, by Jepsen * ''Neoplagiaulax douglassi'' in 1974, by Schiebout It was finally assigned to ''Baiotomeus'' by Hartman in 1986 &mdash ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammal
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla ( cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together with Saur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primate
Primates are a diverse order of mammals. They are divided into the strepsirrhines, which include the lemurs, galagos, and lorisids, and the haplorhines, which include the tarsiers and the simians (monkeys and apes, the latter including humans). Primates arose 85–55 million years ago first from small terrestrial mammals, which adapted to living in the trees of tropical forests: many primate characteristics represent adaptations to life in this challenging environment, including large brains, visual acuity, color vision, a shoulder girdle allowing a large degree of movement in the shoulder joint, and dextrous hands. Primates range in size from Madame Berthe's mouse lemur, which weighs , to the eastern gorilla, weighing over . There are 376–524 species of living primates, depending on which classification is used. New primate species continue to be discovered: over 25 species were described in the 2000s, 36 in the 2010s, and three in the 2020s. Primates have large bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plesiadapis
''Plesiadapis'' is one of the oldest known primate-like mammal genera which existed about 58–55 million years ago in North America and Europe. ''Plesiadapis'' means "near-Adapis", which is a reference to the adapiform primate of the Eocene period, ''Adapis''. ''Plesiadapis tricuspidens'', the type specimen, is named after the three cusps present on its upper incisors. Taxonomy The first discovery of ''Plesiadapis'' was made by François Louis Paul Gervaise in 1877, who first discovered ''Plesiadapis tricuspidens'' in France. The type specimen is MNHN Crl-16, and is a left mandibular fragment dated to the early Eocene epoch. This genus probably arose in North America and colonized Europe on a landbridge via Greenland. Thanks to the abundance of the genus and to its rapid evolution, species of ''Plesiadapis'' play an important role in the zonation of Late Paleocene continental sediments and in the correlation of faunas on both sides of the Atlantic. Two remarkable skeletons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torrejonian
The Torrejonian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 63,300,000 to 60,200,000 years BP lasting . It is usually considered to overlap the Selandian and Thanetian within the Paleocene. The Torrejonian is preceded by the Puercan and followed by the Tiffanian NALMA stages. The Torrejonian is considered to be contained within the Danian The Danian is the oldest age or lowest stage of the Paleocene Epoch or Series, of the Paleogene Period or System, and of the Cenozoic Era or Erathem. The beginning of the Danian (and the end of the preceding Maastrichtian) is at the Cretace ... and contains the following substages: *To3: Lower boundary source of the base of the Torrejonian (approximate). *To2: Lower boundary source of the base of the Torrejonian (approximate) and upper boundary source of the base of the Selandian (approximate). *To1: Upper bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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