|
Caiman Australis
''Caiman australis'' is an extinct species of caiman described in 1858 on the basis of a left maxilla that was collected from the Upper Miocene age Ituzaingó Formation of Entre Rios, Argentina.Bravard, A. (1858). Monografıa de los terrenos marinos terciarios del Paraná. ''Diario oficial del Gobierno: El Nacional Argentino. eprinted as Burmeister, G. 1883.'.Bona, P., & Barrios, F. (2015). The Alligatoroidea of Argentina: an update of its fossil record. ''Publicación Electrónica de la Asociación Paleontológica Argentina'', ''51''. Etymology The species name “''australis''” comes from the Greek root ''austral'', which means “southern” after its discovery in South America. Discovery and taxonomy ''Caiman australis'' was first described by French engineer Auguste Bravard, who had been hired by the Museo de la Confederación, on the basis of a complete left maxilla that had been collected from Upper Miocene strata belonging to the Ituzaingó Formation along the bank ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caiman
A caiman (also cayman as a variant spelling) is an alligatorid belonging to the subfamily Caimaninae, one of two primary lineages within the Alligatoridae family, the other being alligators. Caimans inhabit Mexico, Central and South America from marshes and swamps to mangrove rivers and lakes. They have scaly skin and live a fairly nocturnal existence. They are relatively small-sized crocodilians with an average maximum weight of depending on species, with the exception of the black caiman (''Melanosuchus niger''), which can grow more than in length and weigh in excess of 1,000 kg (2,200 Ib). The black caiman is the largest caiman species in the world and is found in the slow-moving rivers and lakes that surround the Amazon basin. The smallest species is the Cuvier's dwarf caiman (''Paleosuchus palpebrosus''), which grows to long. There are six different species of caiman found throughout the watery jungle habitats of Central and Southern America. The average length for most ... [...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] |
Plohophorus
''Plohophorus'' is an extinct genus of Glyptodont. it lived from the Late Miocene to the Late Pliocene, and its fossilized remains were discovered in South America. Description Like all glyptodonts, this animal had a large carapace formed by numerous osteoderms fused together, covering most of its body. ''Plohophorus'' shared similarities with another Miocene glyptodont, ''Phlyctaenopyga'', especially in its rather broad and low skull. The ornamentation of the caudal tube, protecting the tail, was more simplified ; the peripheral figures were partially regressed and marked in the distal part ; the central oval-shaped figures were contiguous to each other and only left space for small triangular areas between each other. Classification The genus ''Plohophorus'' was first described in 1887 by Florentino Ameghino, based on fossil remains found in Upper Miocene terrains of Argentina. The type species is ''Plohophorus figuratus'' ; several other species from the Late Miocene and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eleutherocercus
''Eleutherocercus'' was a genus of glyptodonts that lived during the Late Miocene and Early Pliocene in South America. Fossils of the genus have been found in the Huayquerian Ituzaingó Formation (''E. paranensis'') and the Montehermosan Monte Hermoso Formation (''E. antiquus'') in 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, th .... at Fossilworks.org References Further reading * A. L. Cione, M. M. Azpelicueta, M. Bond, A. A. Carlini, J. R. Casciotta, M. A. Cozzuol, M. ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaehoplophorus
''Palaehoplophorus'' (also spelled, historically, ''Palaeohoplophorus'') is an extinct genus of glyptodont. It lived from the Middle to the Late Miocene, and its fossilized remains were discovered in South America. Description This animal, like all glyptodonts, had a thick carapace, composed of numerous osteoderm fused together, covering a large part of its body. The plates of its carapace bore a medium-sized, depressed central figure, surrounded by a wrinkled peripheral zone, divided by barely defined furrows and irregular tubercles. Large perforations opened in the furrows around the central figure and between the peripheral figures. The tail was protected by a series of mobile osteoderm rings, presenting a similar ornamentation, and by a terminal straight and cylindrical "tube", formed by contiguous, rounded osteoderms, separated by deep grooves with large perforations, similar to those of the carapace. The terminal and lateral osteoderms were almost identical to each other. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scalabrinitherium
''Scalabrinitherium'' is an extinct genus of mammals of the family Macraucheniidae. Fossils of this animal were found among the fossils of prehistoric xenarthrans in the Ituzaingó Formation of Argentina.''Scalabrinitherium'' at Fossilworks.org Description This animal was rather similar to a with a slightly heavy build; the was long and low, the front teeth were slightly spatulate, and the nasal aperture set far back. It is possible that there was a strong prehens ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proterotherium
''Proterotherium'' (meaning "first beast") is an extinct genus of litoptern mammal of the family Proterotheriidae that lived during the Late Miocene of Argentina and Chile. Fossils of this genus have been found in the Ituzaingó Formation of Argentina, and the Galera Formation of Chile. Classification The genus ''Proterotherium'' was first described by Florentino Ameghino in 1883, on the basis of fossil remains found in Upper Miocene deposits in Patagonia. The type species is ''Proterotherium cervioides''. Numerous other species have been ascribed to this genus, many of which come from lower-middle Miocene deposits, such as ''P. americanum'', ''P. australe'', ''P. brachygnathum'', ''P. cavum'', ''P. cingulatum'', ''P. curtidens'', ''P. dichotomum'' , ''P. divortium'', ''P. gradatum'', ''P. intermedium'', ''P. karaikense'', ''P. mixtum'', ''P. nitens'', ''P. perpolitum'', ''P. politum'', ''P. main'', and ''P. pyramidatum''. However, many of these species are now considered to be ... [...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'', o ... [...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 Formations. ''Neobrachytherium'' may be closely related to ''Thoatherium ''Thoatherium'' (meaning "active swift-beast") is an extinct genus of litoptern mammals from the Early Miocene of Argentina. Fossils of the genus have been found in the Santa Cruz Formation in Argentina. [...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 was short and had a relatively large brain cavity. Judging from its low molars The molars or molar teeth are large, flat teeth at the back of the mouth. They are more developed in mammals. They are used primarily to grind food during chewing. The name ''molar'' derives from La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
