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Urotherium
''Urotherium'' is an extinct genus of Glyptodont. It lived from the Late Miocene to the Late Pliocene, and its fossilized remains were found in South America. Description This animal, like all glyptodonts, had a strong dorsal armor composed of numerous osteoderms fused together. The genus was characterized by an almost cylindrical caudal tube, obtuse and covered of small and raised osteoderms separated by wide and deep furrows. A pair of lateral osteoderms was preceded by other poorly differentiated osteoderms. The osteoderms of the carapace resembled those of the genus ''Trachycalyptus'', remarkably wrinkled and strongly punctuated, with a barely distinct central figure, less dotted than the peripheral area. Compared to ''Trachycalyptus'', the osteoderms of ''Urotherium'' were thicker and more rounded. In the species ''Urotherium simile'', the osteoderms had lost their sutures and resembled those of ''Glyptodon''. Classification The genus ''Urotherium'' was first described i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachycalyptus
''Trachycalyptus'' is an extinct genus of glyptodont. It lived during the Early Pliocene, and its fossilized remains were discovered in South America. Description Like all glyptodonts, ''Trachycalyptus'' had a heavy body protected by a sturdy armor composed of osteoderms fused together. It had wrinkled and strongly punctuated osteoderms ; the central figure was mainly distinguished by a lower density of small holes on its surface. The absence of radial groove allows to distinguish it from other genera of glyptodonts. The tail was protected by a caudal tube, characterized by the presence of wrinkled osteoderms with numerous vascular perforations, without differentiation of the peripheral area. There were three pairs of large lateral osteoderms on the tail. Classification The genus ''Trachycalyptus'' was first described in 1908 by Florentino Ameghino, based on fossil remains found in Pliocene terrains of Argentina. The type species is ''Trachycalyptus chapadmalensis''. A Late M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neuryurus
''Neuryurus'' is an extinct genus of glyptodont. It lived from the Late Pliocene to the Early Holocene, and its fossilized remains were discovered in South America. Description This genus, like all glyptodonts, had a heavy armor formed by osteoderms fused together, protecting most of its body. ''Neuryurus'' was large-sized, reaching three meters in length. The carapace resembled that of other glyptodonts such as ''Trachycalyptus'', with thick and rectangular-shaped osteoderms, loosely fused by a serrated suture. The outer surface of those osteoderms was evenly dotted. The tail was protected by a caudal tube ; this structure, in ''Neuryurus'', was depressed, not consolidated and mostly formed by osteoderms similar to each others. The lateral osteoderms had large elliptical structures, with a central conical prominence, reminding those of '' Hoplophorus'' and '' Panochthus''. Some marginal plates had an elevated and conical central area. The cephalic shield resembled that of ''Pa ... [...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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first 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. During the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Placental Genera
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared 5000 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at very different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilisation, and ancient Egypt were the first civilizations to develop their own scripts and to keep historical records, with their neighbors following. Most other civilizations reached the end of prehistory during the following Iron Age. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neogene Uruguay
The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago (Mya) to the beginning of the present Quaternary Period Mya. The Neogene is sub-divided into two epochs, the earlier Miocene and the later Pliocene. Some geologists assert that the Neogene cannot be clearly delineated from the modern geological period, the Quaternary. The term "Neogene" was coined in 1853 by the Austrian palaeontologist Moritz Hörnes (1815–1868). During this period, mammals and birds continued to evolve into modern forms, while other groups of life remained relatively unchanged. The first humans (''Homo habilis'') appeared in Africa near the end of the period. Some continental movements took place, the most significant event being the connection of North and South America at the Isthmus of Panama, late in the Pliocene. This cut off the warm ocean currents from the Pacific to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossils Of Argentina
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene Argentina
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 Period in the Cenozoic Era. The Pliocene follows the Epoch and is followed by the Epoch. Prior to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene Argentina
The Miocene ( ) is the first 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. During the late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene Genus Extinctions
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 Period in the . The Pliocene follows the Epoch and is followed by the |
