|
Lestobradys
''Lestobradys'' is an extinct genus of ground sloth (family Mylodontidae), which existed in Uruguay during the Late Miocene period; Huayquerian in the South American land mammal age (SALMA). The type species is ''L. sprechmanni'', found in the Camacho Formation of Uruguay.''Lestobradys'' at .org Etymology The genus name, ''Lestobradys'', is derived from ''lesto'', meaning "robber", which refers to the genus' morphological similarities to the Plio-Pleistocene '' Lestodon,'' while "''bradys''" means "slow" due to its common use in ground sloths. The specific name is after Uruguayan ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camacho Formation
The Camacho Formation is a Huayquerian geologic formation in Uruguay. It also comprises the formerly named Kiyu Formation. Fossil content The following fossils have been reported from the formation: ;Mammals * ''Arazamys'' * '' Charruatoxodon'' * ''Cyonasua'' * Gomphotheridae indet. * '' Isostylomys laurillardi'' * '' Lestobradys sprechmanni''''Lestobradys'' at .org * '' Neobrachytherium ullumense'' * '' Neoglyptatelus uruguayensis'' * '' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolivartherium
''Bolivartherium'' is an extinct genus of mylodontine mylodontid sloth that lived during the Late Miocene and Late Pliocene in what is now Venezuela. Fossils have been found in the Codore and Urumaco Formations of Venezuela. Etymology The generic name, ''Bolivartherium'', is named in honour of Libertador Simón Bolívar, a Venezuelan military and political leader. The specific name is derived from the Urumaco Formation in which it was found in. A second species, ''B. codorensis'', was named in 2006 after the Codore Formation in which it was found in. Description ''Bolivartherium'' is a medium-sized mylodontine that was smaller than the quaternary species of '' Lestodon''. It can be distinguished from the latter in having a lower rostrum and the upper caniform which is more curved than in ''Lestodon'', much like ''Lestodon'' sp. from the Monte Hermoso Formation (Montehermosan) of Argentina. The diastema in front of the molariforms is elevated with respect to the occlusal pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mylodontinae
Mylodontinae is an extinct subfamily of ground sloths that lived from the Early Miocene to the Early Holocene epochs. Classification The classification of the Mylodontidae is complex and often under discussion. The most widely accepted subfamilies are the Mylodontinae with ''Mylodon'' as the type genus and the Lestodontinae, whose type genus is ''Lestodon'', which sometimes also includes ''Paramylodon'' and ''Glossotherium ''Glossotherium'' is an extinct genus of large mylodontid ground sloths of the subfamily Mylodontinae. It represents one of the best-known members of the family, along with ''Mylodon'' and '' Paramylodon''. Reconstructed animals were between ...'' (sometimes also listed as belonging to the tribes Mylodontini and Lestodontini. The subdivision of the terminal group of mylodonts into the Lestodontinae and Mylodontinae found confirmation in one of the most comprehensive studies of the phylogeny of sloths based on cranial features in 2004, which subsequentl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huayquerian
The Huayquerian () 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 Chasicoan and precedes the Montehermosan age. Etymology The age is named after the Huayquerías Formation in the western Cuyo Basin of northwestern Argentina that was later dated to the Montehermosan The Montehermosan age is a period of geologic time (6.8–4.0 Mya (unit), Ma) within the Miocene and Pliocene epochs of the Neogene used more specifically with South American Land Mammal Ages. It follows the Huayquerian and precedes the Chapadmalal .... 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 * * * ;Cerro A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lestodon
''Lestodon'' is an extinct genus of giant ground sloth native to South America during the Pleistocene epoch. Its fossil remains have primarily been found in the Pampas and adjacent regions. The largest member of the family Mylodontidae, It is estimated to have weighed . It was a herbivore and primarily fed on the grasses and low-growing plants. Research history and taxonomy The genus ''Lestodon'' and the species ''Lestodon armatus'' was erected by Paul Gervais in 1855, based on a fragments of the upper and lower jaws with teeth found in Late Pleistocene deposits what is currently Buenos Aires Province, Argentina. The genus name, which means "thief tooth", is in reference to the large caniniform teeth at the front of the jaw. In 1934, a second species ''L. australis'' was erected by Lucas Kraglievich, but this is now regarded as a junior synonym of ''L. armatus''. In 2004, two additional species ''L. urumaquensis'' and ''L. codorensis'' were described based on fossils found in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paramylodon
''Paramylodon'' is an extinct genus of ground sloth of the family Mylodontidae endemic to North America during the Pliocene through Pleistocene epochs, living from around ~4.9 Mya–12,000 years ago. Within the genus only two species are recognized: ''Paramylodon harlani,'' also known as Harlan's ground sloth known from Early Pleistocene to the Late Pleistocene (Irvingtonian- Rancholabrean) and the earlier Pliocene-Early Pleistocene (Blancan) species ''Paramylodon garbanii,'' though the placement of the latter in the genus has been questioned by some authors. The first fossil findings date back to the beginning of the 1830s. They go back to Richard Harlan, in whose honor the species was named. The genus ''Paramylodon'' was introduced by Barnum Brown in the early 20th century. Over 150 years after the description of the first species, the finds that are now attributed to ''Paramylodon'' were repeatedly placed in with other genera, first with '' Mylodon'', but since the 1950s in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megatheriidae
Megatheriidae is a family of Extinction, extinct ground sloths that lived from approximately 23 Annum, mya—11,000 years ago. Megatheriids appeared during the Oligocene, Late Oligocene (Deseadan in the South American land mammal age, SALMA classification), some 29 million years ago, in South America. The group includes the largest known ground sloths, the elephant sized ''Megatherium'' (given its name 'great beast' by Georges Cuvier) and ''Eremotherium''. An early genus that was originally considered a megatheriid, the more slightly built ''Hapalops'', reached a length of about . The nothrotheres have recently been placed in their own family, Nothrotheriidae. The skeletal structure of these ground sloths indicates that the animals were massive. Their thick bones and even thicker joints (especially those on the hind legs) gave their appendages tremendous power that, combined with their size and fearsome claws, provided a formidable defense against predators. The earliest megat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simomylodon
''Simomylodon'' is an extinct genus of ground sloths from the family Mylodontidae. It lived from the Late Miocene to the Middle Pliocene of what is now Bolivia and Argentina, 5.3 to 2.8 million years ago. The most important find material comes from the central Altiplano in Bolivia and includes several skulls and dentition remains. Thus, the so far documented body skeleton is the best known and most significant of a Miocene representative of the Mylodontidae. On the basis of the remains, it can be concluded that it is a rather small member of the Mylodontidae. The construction of the limbs supports ground-dwelling locomotion, but this does not exclude occasional digging or climbing. The type and only known species is ''Simomylodon uccasamamensis''. Discovery and naming The scientific first description of ''Simomylodon'' was made in 2010 by Pierre-Antoine Saint-André and fellow researchers. As a basis served the finding material of the sites Ayo Ayo and Viscachani in the Bolivia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thinobadistes
''Thinobadistes'' is an extinct genus of ground sloth of the family Mylodontidae endemic to North America during the Miocene-Pliocene epochs (Hemphillian). It lived from 10.3 to 4.9 mya, existing for approximately . ''Thinobadistes'' and '' Pliometanastes'' were the first of the giant sloths to appear in N. America. Both ''Pliometanastes'' and ''Thinobadistes'' were in N. America before the Panamanian Land Bridge formed around 2.5 million years ago. It is then reasonable to presume that the ancestors of ''Thinobadistes'' island-hopped across the Central American Seaway from South America, where sloths in general first evolved. Description Two specimens of ''Thinobadistes'' have been estimated to weigh 948 kg and 1066 kg each. History and taxonomy The first reported discovery of ''Thinobadistes'' fossils came in 1887 when in Pleistocene deposits in Levy County, Florida, a member of the United States Geological Survey, possibly famous collector John Bell Hatcher, collected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
