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Phlaocyonini
Phlaocyonini is an extinct clade or tribe of hypocarnivorous borophagines (bone-crushing dogs). They were endemic to North America and from the Oligocene epoch (Whitneyan stage) to the Miocene ( Early Barstovian) living ~33.3–5.3 Ma, existing for approximately . The clade includes ''Cynarctoides'' and ''Phlaocyon''. These two genus members represent differing approaches of hypocarnivory. The ''Cynarctoides'' trend toward having molar teeth with crowns formed of crescent-shaped cusps and remain small in size. ''Phlaocyon'' specialize toward rounded cusps on the molar teeth but of increasing size, with an unusual trend toward being hypercarnivores by two terminal species in the clade. Four transitional species of ''Cormocyon'' and ''Desmocyon'' occupy intermediate positions between the Phlaocyonini and Cynarctina. These represent a gradual size increase toward medium-size individuals. Fossil distribution A few of many sites: * Wewela Site, Turtle Butte Formation, Tripp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borophaginae
The extinct Borophaginae form one of three subfamilies found within the canid family. The other two canid subfamilies are the extinct Hesperocyoninae and extant Caninae. Borophaginae, called "bone-crushing dogs", were endemic to North America during the Oligocene to Pliocene and lived roughly 34—2.5 million years ago, existing for about . Origin The Borophaginae descended from the subfamily Hesperocyoninae. The earliest and most primitive borophagine is the genus ''Archaeocyon'', which is a small fox-sized animal mostly found in the fossil beds in western North America. The borophagines soon diversified into several major groups. They evolved to become considerably larger than their predecessors, and filled a wide range of niches in late Cenozoic North America, from small omnivores to powerful, bear-sized carnivores, such as ''Epicyon''. Species There are 66 identified borophagine species, including 18 new ones that range from the Orellan to Blancan ages. A phylogenetic anal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cynarctoides
''Cynarctoides'' is an extinct genus of the Borophaginae subfamily of canids native to North America. It lived from the Early Oligocene to the Middle Miocene, 33.3—13.6 Mya, existing for approximately . Seven species are currently recognised, all of which are estimated to have weighed no more than . They had an unusual dentition that implies an omnivorous, or possibly even herbivorous, diet. Species *''Cynarctoides acridens'' Barbour & Cook 1914 (syn. ''Cynarctus mustelinus'') - Wyoming, California, New Mexico, Texas, ~20.6—16.3 Ma *''Cynarctoides emryi'' Wang ''et al.'' 1999 - Nebraska ~20.6—16.3 Ma *''Cynarctoides gawnae'' Wang ''et al.'' 1999 - New Mexico ~20.3—5.3 Ma *''Cynarctoides harlowi'' Loomis 1932 - Wyoming ~24.8—20.6 Ma *''Cynarctoides lemur'' Cope 1879 - Oregon, South Dakota, Florida ~24.8—20.6 Ma *''Cynarctoides luskensis'' Wang ''et al.'' 1999 - Wyoming ~24.8—20.6 M *''Cynarctoides roii'' Macdonald 1963 - South Dakota, Nebraska ~30.8—26.3 Ma Fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phlaocyon
''Phlaocyon'' (from Greek ''phlao'', "eat greedily" and ''cyon'', "dog") is an extinct genus of the Borophaginae subfamily of canids native to North America. It lives from the Early Oligocene to the Early Miocene epoch 33.3–16.3 Mya, existing for approximately . It is closely related to ''Cynarctoides''. Phylogeny When discovered in the 19th century and during the following decades, ''Phlaocyon'' was thought to be ancestral to raccoons because of shared convergent adaptations toward hypocarnivorous dentitions, but was the first to discover the canid nature of the middle ear region in ''P. leucosteus'' and ''Phlaocyon'' in now believed to be part of very diverse clade of hypocarnivorous canids, the Phlaocyonini, and only distantly related to raccoons. '' P. mariae'' and '' P. yatkolai'', both known from isolated teeth and fragmentary material, are the largest and most derived species, and both display a tendency away from the hypocarnivorous dentition of the genus and towa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arikaree Formation
The Arikaree Formation, also Arikaree Group or Arikaree Sandstone is a geological unit in the central High Plains of the western United States. It preserves fossils dating to the late Oligocene to early Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen .... See also * List of fossiliferous stratigraphic units in North Dakota * Paleontology in North Dakota References Neogene geology of South Dakota Neogene Montana Paleogene geology of North Dakota Neogene geology of Wyoming {{Paleogene-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turtle Butte Formation
The Turtle Butte Formation is a geologic formation at Turtle Butte in South Dakota. It preserves fossils dating back to the Paleogene period. See also * List of fossiliferous stratigraphic units in South Dakota * Paleontology in South Dakota Paleontology in South Dakota refers to paleontological research occurring within or conducted by people from the U.S. state of South Dakota. South Dakota is an excellent source of fossils as finds have been widespread throughout the state. During ... References * Paleogene geology of South Dakota {{Paleogene-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tripp County, South Dakota
Tripp County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 5,624. Its county seat is Winner. The county was created in 1873, and was organized in 1909. It is named for lawyer, judge, and diplomat Bartlett Tripp. Geography Tripp County lies on the south line of South Dakota. Its south boundary is the Nebraska state line, while its north boundary is the meandering White River. The Keya Paha River flows east-southeasterly through the lower part of the county. The county terrain is composed of rolling hills carved by gullies and drainages. The county terrain generally slopes to the south and east, although its upper portion drops northward into the White River valley. The county's highest point is on the lower part of its west boundary line, at 2,552' (778m) ASL. The county has a total area of , of which is land and (0.3%) is water. Major highways * U.S. Highway 18 * U.S. Highway 183 * South Dakota Highway 44 * South Dakota H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooksville 2 Site , named after the village of Brooksville in New Haven, Vermont
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Brooksville is the name of several places in the United States: * Brooksville, Blount County, Alabama * Brooksville, Morgan County, Alabama * Brooksville, Florida **Brooksville Army Airfield, named after the Florida town * Brooksville, Georgia * Brooksville, Kentucky **Brooksville Independent-Graded School District, named after the Kentucky town * Brooksville, Maine * Brooksville, Mississippi * Brooksville, Oklahoma * Brooksville, West Virginia, an unincorporated community also known as Bigbend, West Virginia See also * Brookville (other) * Brooksville Advent Church Brooksville Advent Church is a historic church at 1338 Dog Team Road in New Haven, Vermont. It was built in 1837 and added to the National Register of Historic Places The National Register of Historic Places (NRHP) is the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hernando County, Florida
Hernando County is a county located on the west central coast of the U.S. state of Florida. As of the 2020 census, the population was 194,515. Its county seat is Brooksville, and its largest community is Spring Hill. Hernando County is included in the Tampa-St. Petersburg-Clearwater, FL Metropolitan Statistical Area. As of 2005, Hernando was the 35th fastest-growing county in the country. History Around 1840, Fort DeSoto was established in present-day Hernando County in the northeast edge of present-day Brooksville to protect settlers in the area from Native Americans. Fort DeSoto became a small community center, trading post, and way station on the route to Tampa. Settlements started to grow near the fort beginning around 1845; two towns developed, Melendez and Pierceville, which would later merge to create Brooksville in 1856. Then encompassing a significantly larger area of west central Florida than it does today, Hernando County was officially established on February ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Split Rock Site
Split(s) or The Split may refer to: Places * Split, Croatia, the largest coastal city in Croatia * Split Island, Canada, an island in the Hudson Bay * Split Island, Falkland Islands * Split Island, Fiji, better known as Hạfliua Arts, entertainment, and media Films * ''Split'' (1989 film), a science fiction film * ''Split'' (2016 American film), a psychological horror thriller film * ''Split'' (2016 Canadian film), also known as ''Écartée'', a Canadian drama film directed by Lawrence Côté-Collins * ''Split'' (2016 South Korean film), a sports drama film * '' Split: A Divided America'', a 2008 documentary on American politics * ''The Split'' (1959 film) or ''The Manster'', a U.S.-Japanese horror film * ''The Split'' (film), a 1968 heist film Games * Split (poker), the division of winnings in the card game * Split (blackjack), a possible player decision in the card game Music Albums * ''Split'' (The Groundhogs album), 1971 * ''Split'' (Lush album), 1994 * ''Split'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligocene
The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene was coined in 1854 by the German paleontologist Heinrich Ernst Beyrich from his studies of marine beds in Belgium and Germany. The name comes from the Ancient Greek (''olígos'', "few") and (''kainós'', "new"), and refers to the sparsity of extant forms of molluscs. The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene Epoch. The Oligocene is the third and final epoch of the Paleogene Period. The Oligocene is often considered an important time of transition, a link between the archaic world of the tropical Eocene and the more modern ecosystems of the Miocene. Major changes during the Oligocene included a global expansion o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fremont County, Wyoming
Fremont County is a county in the U.S. state of Wyoming. As of the 2020 United States Census, the population was 39,234, making it the fifth-most populous county in Wyoming. Its county seat is Lander. The county was founded in 1884 and is named for John C. Frémont, a general, explorer, and politician. It is roughly the size of the state of Vermont. Fremont County comprises the Riverton, WY Micropolitan Statistical Area. History Fremont County was created on March 5, 1884 by the legislature of the Wyoming Territory. The county was created with land ceded by Sweetwater County. In 1890, Big Horn County was carved out of Fremont, Johnson, and Sheridan Counties. Hot Springs County was created in 1911 from parts of Fremont, Big Horn, and Park counties. In 1921, Sublette County was created from parts of Fremont and Lincoln counties, leaving Fremont County's boundary at its present configuration. Fremont County was named for John Charles Frémont, an explorer of the American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cynarctina
Cynarctina is an extinct clade of the Borophaginae subfamily of canids native to North America. They lived from the Early to Middle Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ... 16.0—10.3 Ma, existing for approximately . Cynarctines had rounded cusps on the molar teeth, similar to those seen in living bears, suggesting that they were likely omnivores. References Miocene canids Prehistoric mammals of North America Animal subtribes {{canid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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