Palaeolama
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Palaeolama
''Palaeolama'' () is an extinct genus of laminoid camelid that existed from the Late Pliocene to the Early Holocene (). Their range extended from North America to the intertropical region of South America. Description ''Palaeolama'' were relatives of modern camelids that lived in the New World from the Late Pliocene to the Late Pleistocene or Early Holocene. Fossil evidence suggests that it had a slender head, elongate snout, and stocky legs. They likely weighed around or up to , surpassing the weight of modern llamas. They were specialized forest browsers and are often found in association with early equids, tapirs, deer, and mammoth. Morphology Cranial ''Palaeolama'' had a long, slender skull with an elongated rostrum and robust jaw. This morphology more closely resembles the cranial morphology of ''Hemiauchenia'' than that of modern llamas. Dental The jaw and dental morphology of ''Palaeolama'' distinguish it from other laminae. ''Palaeolama'' tend to have a compara ...
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Camelidae
Camelids are members of the biological family Camelidae, the only currently living family in the suborder Tylopoda. The seven extant members of this group are: dromedary camels, Bactrian camels, wild Bactrian camels, llamas, alpacas, vicuñas, and guanacos. Camelids are even-toed ungulates classified in the order Cetartiodactyla, along with species like whales, pigs, deer, cattle, and antelopes. Characteristics Camelids are large, strictly herbivorous animals with slender necks and long legs. They differ from ruminants in a number of ways.Fowler, M.E. (2010). ''Medicine and Surgery of Camelids'', Ames, Iowa: Wiley-Blackwell. Chapter 1 "General Biology and Evolution" addresses the fact that camelids (including camels and llamas) are not ruminants, pseudo-ruminants, or modified ruminants. Their dentition show traces of vestigial central incisors in the incisive bone, and the third incisors have developed into canine-like tusks. Camelids also have true canine teeth and tusk-lik ...
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Hemiauchenia
''Hemiauchenia'' is a genus of laminoid camelids that evolved in North America in the Miocene period about 10 million years ago. This genus diversified and moved to South America in the Early Pleistocene, as part of the Great American Biotic Interchange, giving rise to modern lamines. The genus became extinct at the end of the Pleistocene. Broad features of genus ''Hemiauchenia'' The genus name is derived from the grc, ἡμι- (, "half"-) and αὐχήν (, "neck"). Species are specified using Latin adjectives or Latinised names from other languages. North American fossils Remains of these species have been found in assorted locations around North America, including Florida, Texas, Kansas, Nebraska, Arizona, Mexico, California, Oklahoma, New Mexico, Oregon, Colorado, and Washington. The "large-headed llama", ''H. macrocephala'', was widely distributed in North and Central America, with ''H. vera'' being known from the western United States and northern Mexico. ''H. m ...
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Great American Interchange
The Great American Biotic Interchange (commonly abbreviated as GABI), also known as the Great American Interchange and the Great American Faunal Interchange, was an important late Cenozoic paleozoogeographic biotic interchange event in which land and freshwater fauna migrated from North America via Central America to South America and vice versa, as the volcanic Isthmus of Panama rose up from the sea floor and bridged the formerly separated continents. Although earlier dispersals had occurred, probably over water, the migration accelerated dramatically about 2.7 million years ( Ma) ago during the Piacenzian age. It resulted in the joining of the Neotropic (roughly South American) and Nearctic (roughly North American) biogeographic realms definitively to form the Americas. The interchange is visible from observation of both biostratigraphy and nature (neontology). Its most dramatic effect is on the zoogeography of mammals, but it also gave an opportunity for reptiles, amphibia ...
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Lamini
Lamini (members are called ''laminoids'') is a tribe of the subfamily Camelinae. It contains one extant genus with four species, all exclusively from South America: llamas, alpacas, vicuñas, and guanacos. The former two are domesticated species, while the latter two are only found in the wild. None display sexual dimorphism. The four species can interbreed and produce fertile offspring. Additionally, there are two extinct genera known from the fossil record. The digestive system of lamoids allows them to digest certain toxins. Laminoids also lack a gallbladder. Characteristics and distribution The llama (''Lama glama'') is the largest of the extant laminoids and weighs with a height of at the shoulder. Llamas are not a natural species; rather, they were domesticated by the Peruvians and Bolivians of the highlands. Commercial trade led to the llama's current abundance in Colombia, Ecuador, Peru, Bolivia, Chile, Paraguay, and northeast Argentina. There are bands of llamas in ...
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Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale
million years ago. It is the second and most recent epoch of the Neogene Period in the . The Pliocene follows the Epoch and is followed by the Epoch. Prior to the 2009 ...
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Odocoileus
''Odocoileus'' is a genus of medium-sized deer (family Cervidae) containing three species native to the Americas The Americas, which are sometimes collectively called America, are a landmass comprising the totality of North and South America. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. Along with th ....''Odocoileus''
Mammal Species of the World, 3rd Edition
Gutiérrez, E. E., Helgen, K. M., McDonough, M. M., Bauer, F., Hawkins, M. T., Escobedo-Morales, L. A., ... & Maldonado, J. E. (2017). A gene-tree test of the traditional taxonomy of American deer: the import ...
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Alachua County, Florida
Alachua County ( ) is a county in the north central portion of the U.S. state of Florida. As of the 2020 census, the population was 278,468. The county seat is Gainesville, the home of the University of Florida since 1906, when the campus opened with 106 students. Alachua County is part of the Gainesville Metropolitan Statistical Area. The county is known for its diverse culture, local music, and artisans. Much of its economy revolves around the university, which had nearly 55,000 students in the fall of 2016. History Early history The first people known to have entered the area of Alachua County were Paleo-Indians, who left artifacts in the Santa Fe River basin before 8000 BCE. Artifacts from the Archaic period (8000 - 2000 BCE) have been found at several sites in Alachua County. Permanent settlements appeared in what is now Alachua County around 100 CE, as people of the wide-ranging Deptford culture developed the local Cades Pond culture. The Cades Pond culture gave way ...
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Florida
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to the south by the Straits of Florida and Cuba; it is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. Spanning , Florida ranks 22nd in area among the 50 states, and with a population of over 21 million, it is the third-most populous. The state capital is Tallahassee, and the most populous city is Jacksonville. The Miami metropolitan area, with a population of almost 6.2 million, is the most populous urban area in Florida and the ninth-most populous in the United States; other urban conurbations with over one million people are Tampa Bay, Orlando, and Jacksonville. Various Native American groups have inhabited Florida for at least 14,000 years. In 1513, Spanish explorer Juan Ponce de León became the first k ...
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California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territories of the United States by population, most populous U.S. state and the List of U.S. states and territories by area, 3rd largest by area. It is also the most populated Administrative division, subnational entity in North America and the 34th most populous in the world. The Greater Los Angeles area and the San Francisco Bay Area are the nation's second and fifth most populous Statistical area (United States), urban regions respectively, with the former having more than 18.7million residents and the latter having over 9.6million. Sacramento, California, Sacramento is the state's capital, while Los Angeles is the List of largest California cities by population, most populous city in the state and the List of United States cities by population, ...
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Ensenadan
The Ensenadan age is a period of geologic time (1.2–0.8 Ma) within the Early Pleistocene epoch of the Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million year ... used more specifically with South American Land Mammal Ages. It follows the Uquian and precedes the Lujanian age. References Pleistocene life Calabrian (stage) Quaternary animals of South America .001Ensenadan {{geochronology-stub ...
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Irvingtonian
The Irvingtonian North American Land Mammal Age on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), spanning from 1.9 million – 250,000 years BP.The _Blancan, Irvingtonian and Rancholabrean Mammal Ages
by Christopher J. Bell and Ernest L. Lundelius Jr., Anthony D. Barnosky, Russell W. Graham, Everett H. Lindsay, Dennis R. Ruez Jr., Holmes A. Semken Jr., S. David Webb, and Richard J. Zakrzewski. January 2004 in the book: Late Cretaceous and Cenozoic Mammals of North America: Biostratigraphy and Geochronology. Chapter: 7. Publisher: Columbia University Press; Editors: Michael O. Woodburne. pp274-276
Named after an assemblage of fossils from the
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Metapodial
Metapodials are long bones of the hand (metacarpals) and feet (metatarsal The metatarsal bones, or metatarsus, are a group of five long bones in the foot, located between the tarsal bones of the hind- and mid-foot and the phalanges of the toes. Lacking individual names, the metatarsal bones are numbered from the med ...s) which connect the digits to the lower leg bones. In humans, five are present in each hand and foot. In quadrupeds, these form the lower limb, rather than being part of the extremity, thus what looks to be the elbow of a sheep is actually the wrist. Bones of the upper limb Bones of the lower limb Bones of the hand {{musculoskeletal-stub ...
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