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Neoepiblemidae
The Neoepiblemidae are an extinct family of hystricognath rodents from South America. The genera '' Dabbenea'' and '' Perumys'' are now included in ''Phoberomys''. The delineation between Neoepiblemidae and Dinomyidae has historically been unclear, with some genera (such as ''Phoberomys'' and '' Eusigmomys'') having varying taxonomic placement. A 2017 study found ''Phoberomys'' to be part of the group, while ''Eusigmomys'' was found to be part of the Dinomyidae. Fossils of the family were found in the Colhuehuapian to Huayquerian Pinturas, Sarmiento, Santa Cruz, Cerro Bandera and Ituzaingó Formations and Colhué Huapí Member of Argentina, the Solimões Formation of Brazil, the Pebas Formation of Peru and the Urumaco Formation of Venezuela. at |
Huayquerian
The Huayquerian ( es, Huayqueriense) age is a period of geologic time (9.0–6.8 Ma) within the Late Miocene epoch of the Neogene, used more specifically within the SALMA classification. It follows the Mayoan and precedes the Montehermosan age. Etymology The age is named after the Huayquerías Formation The Huayquerías Formation ( es, Formación Huayquerías) is a Late Miocene fossiliferous geological formation of the Frontal Cordillera and Cuyo Basin of Argentina. The formation crops out in the central Mendoza Province. The formation, with a m ... in the western Cuyo Basin of northwestern Argentina that was later dated to the Montehermosan. The most complete Huayquerian fauna is found in the Cerro Azul Formation, in Buenos Aires Province also referred to as Epecuén Formation. Formations Fossil content Correlations Notes and references Notes References Bibliography ;Huayquerías Formation * * ;Andalhuala Formation * ;Camacho Formation * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colhuehuapian
The Colhuehuapian age is a period of geologic time (21.0–17.5 Ma) within the Early Miocene epoch of the Neogene, used more specifically within the SALMA classification in South America. It follows the Deseadan and precedes the Santacrucian age. Etymology The age is named after the Colhué Huapí Member of the Sarmiento Formation in the Golfo San Jorge Basin, Patagonia, Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, t .... Formations Fossils References Bibliography ;Colhué Huapí Member * * ;Abanico Formation * * * * * * ;Biblián Formation * ;Castillo Formation * * * * * ;Cerro Bandera Formation * * ;Chichinales Formation * * ;Chilcatay Formation * * * * * * * * * * ;Cura-Mallín Group * * * ;Gaiman Formation * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perimys
''Perimys'' is an extinct genus of neoepiblemid rodent that lived from the Early to Late Miocene in what is now South America. Fossils have been found in the Cerro Bandera, Cerro Boleadoras, Material was copied from this source, which is available under a Creative Commons Attribution 3.0 International License Ituzaingó, Santa Cruz, and Sarmiento Formations of Argentina, and the Galera, Santa Cruz and Río Frías Formations of Chile. Description ''Perimys'' was a medium to large-sized rodent. ''Perimys'' can be distinguished from other caviomorphs in having euhypsodont and bilophodont cheek teeth, with the hypoflexus/id being conspicuously broader and filled with more cementum than in '' Prolagostomus'' and '' Pliolagostomus''. As a result, the teeth of ''Perimys'' have a U-shape occlusal outline. Taxonomy ''Perimys'' was first described by Florentino Ameghino in 1887 based on remains found in the Santa Cruz Formation of Argentina, with the proposed type species being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarmiento Formation
The Sarmiento Formation (Spanish: ''Formación Sarmiento''), in older literature described as the Casamayor Formation, is a geological formation in Chubut Province, Argentina, in central Patagonia, which spans around 30 million years from the mid-Eocene to the early Miocene. It predominantly consists of pyroclastic deposits, which were deposited in a semi-arid environment. It is divided up into a number of members. The diverse fauna of the Sarmiento Formation, including a variety of birds, crocodilians, turtles and snakes, also includes many mammals such as South American native ungulates ( notoungulates, litopterns, astrapotheres) as well as armadillo Armadillos (meaning "little armored ones" in Spanish) are New World placental mammals in the order Cingulata. The Chlamyphoridae and Dasypodidae are the only surviving families in the order, which is part of the superorder Xenarthra, al ...s, and caviomorph rodents. Material was copied from this source, which is avail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerro Bandera Formation
The Cerro Bandera Formation is a geological formation in Neuquén Province, Argentina, in northern Patagonia, which dates to the Early Miocene, around 21 to 17.5 million years ago. It predominantly consists of pyroclastic deposits, which were deposited in a semi-arid environment. It is divided up into a number of members. The diverse fauna of the Cerro Bandera Formation include a variety of turtles and birds, also includes many mammals such as South American native ungulates ( notoungulates, litopterns, astrapotheres) as well as armadillos, and caviomorph rodents. Material was copied from this source, which is available under a Creative Commons Attribution 3.0 International License The Cerro Bandera Formation comprises a series of isolated outcrops that represent the relicts of an old alluvial filling developed on small local valleys. It is composed of a succession of reworked pyroclastic deposits alternating with primary pyroclastic and scant sandstone levels. These deposits ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinomyidae
The Dinomyidae are a family of South American hystricognath rodents: the dinomyids were once a very speciose group, but now contains only a single living species, the pacarana. Several of the extinct dinomyids were among the largest rodents known to date; these included the bison-sized ''Josephoartigasia monesi'' and the smaller ''Josephoartigasia magna''. The dinomyids are thought to have occupied ecological niches associated with large grazing mammals due to their ability to compete with the native ungulates of South America. On the other side, they could feed on aquatic or swampy plants along the ancient rivers. These large forms disappeared after the formation of a connection to North America. The modern pacarana is only modest in size, considerably smaller than the capybara. The Neoepiblemidae, an entirely extinct family, may actually be part of the Dinomyidae; both groups are undoubtedly closely related. Genera *Family: Dinomyidae **†'' Agnomys'' ''incertae sedis'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hystricognathi
The Hystricognathi are an infraorder of rodents, distinguished from other rodents by the bone structure of their skulls. The masseter medialis (a jaw muscle) passes partially through a hole below each eye socket (called the infraorbital foramen) and connects to the bone on the opposite side. This, together with their lack of an infraorbital plate and the relative size of the infraorbital foramen, distinguishes hystricognaths from other rodent groups. The 18 families within the Hystricognathi are divided into two parvorders, the Phiomorpha and the Caviomorpha. The Caviomorpha are mostly native to South America, with a few species in the Caribbean and North America, while the Phiomorpha occur in the Old World. Behavior Play behavior has been observed in seven hystricognath families. The caviomorphs chase each other, play-wrestle, and gallop. The longer-legged species chase more often than the shorter-legged species. They also rotate their heads and body muscles as a form of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phoberomys
''Phoberomys'' is an extinct genus of rodents. Fossil specimens from the Late Miocene period have been discovered in the Ituzaingó Formation of Argentina, the Solimões Formation of Brazil, the Urumaco Formation at Urumaco in Venezuela, and the Pliocene of Peru. Species Species in the genus described are:''Phoberomys'' at Fossilworks
Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database
The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ... .org
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Hystricognath Rodents
The Hystricognathi are an infraorder of rodents, distinguished from other rodents by the bone structure of their skulls. The masseter medialis (a jaw muscle) passes partially through a hole below each eye socket (called the infraorbital foramen) and connects to the bone on the opposite side. This, together with their lack of an infraorbital plate and the relative size of the infraorbital foramen, distinguishes hystricognaths from other rodent groups. The 18 families within the Hystricognathi are divided into two parvorders, the Phiomorpha and the Caviomorpha. The Caviomorpha are mostly native to South America, with a few species in the Caribbean and North America, while the Phiomorpha occur in the Old World. Behavior Play behavior has been observed in seven hystricognath families. The caviomorphs chase each other, play-wrestle, and gallop. The longer-legged species chase more often than the shorter-legged species. They also rotate their heads and body muscles as a form o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Álvaro Mones
Álvaro Jaime Mones Sibillotte (born 7 August 1942 in Montevideo Montevideo () is the Capital city, capital and List of cities in Uruguay, largest city of Uruguay. According to the 2011 census, the city proper has a population of 1,319,108 (about one-third of the country's total population) in an area of . M ...) is a Uruguayan biologist and paleontologist. The fossil '' Josephoartigasia monesi'' is named after him, for his study of the rodent in 1966. References 1942 births[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Fossilworks was created in 1998 by John Alroy and is housed at Macquarie University. It includes many analysis and data visualization tools formerly included in the Paleobiology Database.{{cite web, title=Frequently asked questions, url=http://www.fossilworks.org/cgi-bin/bridge.pl?page=FAQ, publisher=Fossilworks, access-date=17 December 2021 References {{Reflist External links {{Wikidata property, P842 * [Baidu] |
Urumaco Formation
The Urumaco Formation is a formation in Venezuela that includes deposits from the Late Miocene. It is the site of several "giant forms": the turtles, crocodiles, sloths and rodents of Urumaco are among the largest of their groups. Location The Urumaco formation is located in the Urumaco region in the Caribbean coastal Falcón state. The deposits date from 10 to 5.3 million years ago and the Urumaco formation was deposited in an area with large rivers, swamps, estuaries, lagoons and shallow coastal seas. These conditions in the Late Miocene contrast strongly with the current dry environment in the area today. Fauna Cartilaginous fish There are 21 known species of cartilaginous fishes from the Urumaco Formation, belonging to the orders Lamniformes, Carcharhiniformes, Myliobatiformes and Rajiformes. '' Carcharhinus caquetius'' is an endemic species of predator shark from Urumaco. A large number of well-preserved fossils of the sawfish '' Pristis rostra'' have been foun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
