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Dasypus Neogaeus
''Dasypus neogaeus'' is an extinct species of armadillo, belonging to the genus '' Dasypus'', alongside the modern nine-banded armadillo. The only known fossil is a single osteoderm, though it has been lost, that was found in the Late Miocene strata of Argentina. History and classification Fossils of ''Dasypus neogaeus'' were first collected from the Late Miocene “Osiferous Conglomerate” of the Ituzaingo Formation of Parana, Entre Rios Province in northern Argentina by paleontologist Florentino Ameghino.Scillato, G. J. (2013). Los Cingulata (Mammalia, Xenarthra) del “Conglomerado Osífero”(Mioceno tardío) de la Formación Ituzaingó de Entre Ríos, Argentina. ''Publicación Electrónica de la Asociación Paleontológica Argentina'', ''14''(1).Ameghino, F. (1891). Caracteres diagnósticos de cincuenta especies nuevas de mamíferos fósiles argentinos. ''Revista Argentina de Historia Natural'', ''1''(3), 129–167. However, some authors recently have stated that the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first epoch (geology), 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 recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grassland
A grassland is an area where the vegetation is dominated by grasses ( Poaceae). However, sedge ( Cyperaceae) and rush ( Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–69% of the Earth's land area. Definitions Included among the variety of definitions for grasslands are: * "...any plant community, including harvested forages, in which grasses and/or legumes make up the dominant vegetation." * "...terrestrial ecosystems dominated by herbaceous and shrub vegetation, and maintained by fire, grazing, drought and/or freezing temperatures." (Pilot Assessment of Global Ecosystems, 2000) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Promacrauchenia
''Promacrauchenia'' is an extinct genus of macraucheniids that lived during the Late Miocene to Late Pliocene epochs of what is now Argentina and Bolivia. It belongs to the subfamily Macraucheniinae, which also includes ''Huayqueriana'', '' Macrauchenia'', and '' Xenorhinotherium.'' Fossils of this genus have been found in the Ituzaingó, Andalhuala, and Cerro Azul Formation The Cerro Azul Formation ( es, Formación Cerro Azul), in the Buenos Aires Province also described as Epecuén Formation, is a geological formation of Late Miocene ( Tortonian, or Huayquerian in the SALMA classification) age in the Colorado Basin ...s of Argentina. Classification The genus ''Promacrauchenia'' was first described by Florentino Ameghino in 1904, on the basis of fossils found in Patagonia in lower Pliocene deposits and which Ameghino himself, years earlier, had described as a species of ''Macrauchenia'', as ''M. antiqua'' . In addition to the type species, ''Promacrauchenia'' ''antiqua'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paranauchenia
''Paranauchenia'' is an extinct genus of South American litopterns belonging to the family Macraucheniidae. It is known only from fossil finds in Argentina. It possessed three toes and long limbs. The species ''Paranauchenia denticulata'' lived in the Miocene epoch in Argentina.Ameghino, F. 1904a. Nuevas especies de mamíferos Cretáceos y Terciarios de la República Argentina. ''Anales de la Sociedad Científica Argentina'' 16: 193-208; 17: 162-175, 182-192, 225-240, 241-291. Fossils have been found in the Arroyo Chasicó and Ituzaingó Formations of Argentina.''Paranauchenia'' at Fossilworks.org Classification |
Neobrachytherium
''Neobrachytherium'' is an extinct genus of proterotheriid mammal from the Late Miocene of Argentina and Uruguay. It is represented by multiple species, including the type ''N. intermedium'', originally named in 1891 by Moreno and Mercerat as a species of '' Licaphrium'', ''N. morenoi'', originally named in 1914 by Rovereto as a species of '' Brachytherium'', and ''N. ameghinoi'' and ''N. ullumense'', named in 2001 by Soria, who reclassified all the species in the new genus ''Neobrachytherium''. The various species are known from cranial and dental material from the Corral Quemado, Loma de las Tapias and Ituzaingó Formation The Ituzaingó Formation ( es, Formación Ituzaingó), in older literature also described as Entre Ríos or Entrerriana Formation, is an extensive geological formation of Late Miocene ( Tortonian, or Huayquerian in the SALMA classification) age in ...s. ''Neobrachytherium'' may be closely related to '' Thoatherium'', '' Diadiaphorus'' and '' Thoatheriopsis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diadiaphorus
''Diadiaphorus'' is an extinct genus of litoptern mammal from the Miocene of Argentina ( Ituzaingó, Pinturas, Chiquimil and Santa Cruz Formations) and Bolivia ( Nazareno Formation), South America. Description ''Diadiaphorus'' closely resembled a horse, but was only around in body length with a weight , similar to a modern sheep.D. Patterson, Bruce (2012) ''Bones, Clones, and Biomes: The History and Geography of Recent Neotropical Mammals'' p.92 It had three toes, only one of which touched the ground. This toe had a large hoof; the two outer toes were rudimentary, much like those of early horses such as '' Merychippus''. Unlike horses, however, ''Diadiaphorus'' lacked fused limb bones. Its skull The skull is a bone protective cavity for the brain. The skull is composed of four types of bone i.e., cranial bones, facial bones, ear ossicles and hyoid bone. However two parts are more prominent: the cranium and the mandible. In humans, th ... was short and had a relati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cullinia
''Cullinia'' is an extinct genus of litoptern, an order of South American native ungulates that included horse-like and camel-like animals such as ''Macrauchenia''. It is only known from fragmentary remains. ''Cullinia levis'' is known from Chasicoan remains found in the Arroyo Chasicó Formation of Argentina, and remains from the Brazilian state of Acre and the Huayquerian Ituzaingó Formation have been assigned to ''Cullinia'' sp. . History and naming ''Cullinia'' was described in 1931 by Cabrera and Kraglievich, from MLP 29-IX-178, an holotype containing several fragmentary remains including a mandible and a metatarsal. In 1995, Bond and López add to the holotype other remains from the upper dentition. It was named from the Araucanian word "cullin", meaning "animal". Description ''Cullinia'' was a slender, small Macraucheniidae. It had proportionally larger metapodials than '' Theosodon'', and its first lower molar was absent. Classification Below is a phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachytherium
''Brachytherium'' is an extinct genus of proterotheriid mammal from the Late Miocene to Late Pliocene of Argentina. It is represented by the type and only species ''B. cuspidatum'', a taxon named in 1883 by Ameghino for a partial mandible with teeth. Though it was considered a dubious taxon at times, ''Brachytherium'' was revised as valid by Schmidt in 2015, who also synonymized the species ''Proterotherium gradatum'' and ''Lophogonodon paranensis'', expanding the material known, all of which is from the Ituzaingó Formation. Some material previously referred to ''Brachytherium'' has been given the new name ''Neobrachytherium ''Neobrachytherium'' is an extinct genus of proterotheriid mammal from the Late Miocene of Argentina and Uruguay. It is represented by multiple species, including the type ''N. intermedium'', originally named in 1891 by Moreno and Mercerat as a ...''. References {{Taxonbar, from=Q111828098 Proterotheriids Miocene mammals of South America Pliocene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Litopterna
Litopterna (from grc, λῑτή πτέρνα "smooth heel") is an extinct order of fossil hoofed mammals from the Cenozoic era. The order is one of the five great orders of South American ungulates that were endemic to the continent, until the Great American Biotic Interchange brought new ungulate species. Like other endemic South American mammals, their relationship to other mammal groups had long been unclear, but recent genetic and proteomic evidence indicates that their closest living relatives are Perissodactyls (odd-toed ungulates) including horses, rhinoceros, and tapirs, and that litopterns are closely related to notoungulates, another widespread group of South American ungulates. There were two major groups of litopterns: Proterotheriidae and Macraucheniidae. Proterotheriids were medium to large animals that evolved adaptations for fast running, and occupied a variety of niches that elsewhere were filled by animals such as goats and antelopes, mouse deer, and h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adinotherium
''Adinotherium'' (meaning "not terrible beast")Palmer (1904) p. 80. is an extinct genus of Toxodontidae, large bodied hoofed ungulates which inhabited South America during the Middle to Late Miocene, from 17.5 to 6.8 Ma and existed for approximately , Santacrucian to Huayquerian in the South American land mammal ages (SALMA). Fossils of ''Adinotherium'' have been found in the Santa Cruz and Ituzaingó Formations of Argentina and the Chucal and Río Frías Formations of Chile.''Adinotherium'' at .org Description [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xotodon
''Xotodon'' is an extinct genus of toxodontid mammal that lived during the Late Miocene (Huayquerian in the SALMA classification) in Argentina, South America. Fossils of ''Xotodon'' have been found in the Ituzaingó, Maimará and Chiquimil Formations of Argentina.''Xotodon'' at Fossilworks
Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world.
History
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References {{Taxonbar, from=Q8044955[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
