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Daspletosaurini
Daspletosaurini is an extinct clade of tyrannosaurine dinosaurs that lived in Laramidia during the Late Cretaceous (Middle Campanian) period. It consists of two genera: ''Daspletosaurus'' and ''Thanatotheristes''. Four species have been described in the two genera, namely ''Daspletosaurus torosus'', ''Daspletosaurus horneri'', ''Daspletosaurus wilsoni'', and ''Thanatotheristes degrootorum''. At one point all of them were assigned as specimens of ''D. torosus'', but several papers since 2017 have found them to represent distinct species. These studies found anagenesis in the group, whether contained in a daspletosaurin clade or paraphyletic in respect to the linage of tyrannosaurines leading up to ''Tyrannosaurus''. Description Daspletosaurins were large predators, reaching around in length. However, they were not the largest tyrannosaurids, as more derived taxa, such as ''Tyrannosaurus'', could reach lengths of more than . Daspletosaurini is diagnosed by characteristics such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daspletosaurini Size Comparison
Daspletosaurini is an extinct clade of tyrannosaurine dinosaurs that lived in Laramidia during the Late Cretaceous (Middle Campanian) period. It consists of two genera: ''Daspletosaurus'' and ''Thanatotheristes''. Four species have been described in the two genera, namely ''Daspletosaurus torosus'', ''Daspletosaurus horneri'', ''Daspletosaurus wilsoni'', and ''Thanatotheristes degrootorum''. At one point all of them were assigned as specimens of ''D. torosus'', but several papers since 2017 have found them to represent distinct species. These studies found anagenesis in the group, whether contained in a daspletosaurin clade or paraphyletic in respect to the linage of tyrannosaurines leading up to ''Tyrannosaurus''. Description Daspletosaurins were large predators, reaching around in length. However, they were not the largest tyrannosaurids, as more derived taxa, such as ''Tyrannosaurus'', could reach lengths of more than . Daspletosaurini is diagnosed by characteristics such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thanatotheristes
''Thanatotheristes'' (meaning "reaper of death" according to the original authors; literally, "death harvester" in Greek language, Greek: , , "Death" and , , "harvester") is a genus of tyrannosaurid dinosaur from the Late Cretaceous of Laramidia, approximately 80.1-79.5 Ma. ''Thanatotheristes'' contains only one species, ''T. degrootorum''. Fossils of this taxon are found in the Foremost Formation of Alberta, Canada, coexisting with medium-sized Ceratopsidae, ceratopsids like ''Xenoceratops foremostensis'' and small Pachycephalosauridae, pachycephalosaurids like ''Colepiocephale lambei''. Discovery and naming The holotype specimen of ''Thanatotheristes degrootorum'' (TMP 2010.5.7) is based on a right maxilla, right jugal, right postorbital, right surangular, right quadrate, right laterosphenoid, left frontal, and both dentaries. The length of the skull has been approximated to be . It was smaller than the closely related ''Daspletosaurus'', but the holotype individual was not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyrannosaurine
The tyrannosaurines (Tyrannosaurinae) is an extinct subfamily of Tyrannosauridae a family of coelurosaurian theropod dinosaurs that consists of at least three tribes and several genera. All fossils of these genera have been found in the Late Cretaceous deposits of western North America and east Asia. Compare to the related subfamily Albertosaurinae, tyrannosaurines overall are more robust and larger though the alioramins were gracile by comparison. This subfamily also includes the oldest known tyrannosaurid genus ''Lythronax'' as well as the youngest and most famous member of the group, ''Tyrannosaurus rex''. History of discovery The first remains of tyrannosaurids were uncovered during expeditions led by the Geological Survey of Canada, which located numerous scattered teeth. These distinctive dinosaur teeth were given the name ''Deinodon'' ("terrible tooth") by Joseph Leidy in 1856. In 1892 Edward Drinker Cope described more tyrannosaur material in the form of isolated vertebra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyrannosaurinae
The tyrannosaurines (Tyrannosaurinae) is an extinct subfamily of Tyrannosauridae a family of coelurosaurian theropod dinosaurs that consists of at least three tribes and several genera. All fossils of these genera have been found in the Late Cretaceous deposits of western North America and east Asia. Compare to the related subfamily Albertosaurinae, tyrannosaurines overall are more robust and larger though the alioramins were gracile by comparison. This subfamily also includes the oldest known tyrannosaurid genus ''Lythronax'' as well as the youngest and most famous member of the group, ''Tyrannosaurus rex''. History of discovery The first remains of tyrannosaurids were uncovered during expeditions led by the Geological Survey of Canada, which located numerous scattered teeth. These distinctive dinosaur teeth were given the name ''Deinodon'' ("terrible tooth") by Joseph Leidy in 1856. In 1892 Edward Drinker Cope described more tyrannosaur material in the form of isolated vertebra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teratophoneus Curriei By PaleoGeek
''Teratophoneus'' ("monstrous murderer"; Greek: ''teras'', "monster" and ''phoneus'', "murderer") is a genus of tyrannosaurid dinosaur which lived during the late Cretaceous period (late Campanian age, about 77 to 76 million years ago) in what is now Utah, United States, containing a single known species, ''T. curriei''. It is known from an incomplete skull and postcranial skeleton recovered from the Kaiparowits Formation. It was specifically named ''T. curriei'' in honor of Philip J. Currie. Discovery and naming Fossils of ''Teratophoneus'' were first found in the Kaiparowits Formation of southern Utah. Later, fossils from the same formation were discovered and identified as the genus. Argon-argon radiometric dating indicates that the Kaiparowits Formation was deposited between 76.1 and 74.0 million years ago, during the Campanian stage of the Late Cretaceous period. This date means that ''Teratophoneus'' lived in the middle of the Campanian stage of the Late Cretaceous. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daspletosaurus Torosus
''Daspletosaurus'' ( ; meaning "frightful lizard") is a genus of tyrannosaurid dinosaur that lived in Laramidia between about 79.5 and 74 million years ago, during the Late Cretaceous Period. The genus ''Daspletosaurus'' contains three species. Fossils of the earlier type species, ''D. torosus'', have been found in Alberta, and fossils of a later second species, ''D. wilsoni,'' and third species, ''D. horneri'', have been found only in Montana. A possible fourth species, also from Alberta, awaits formal identification. The taxon '' Thanatotheristes'' has been suggested to represent a species of ''Daspletosaurus'', ''D. degrootorum'', but this has not been widely supported. ''Daspletosaurus'' is closely related to the much larger and more recent tyrannosaurid ''Tyrannosaurus rex''. Like most tyrannosaurids, ''Daspletosaurus'' was a multi-tonne bipedal predator equipped with dozens of large, sharp teeth. ''Daspletosaurus'' had the small forelimbs typical of tyrannosaurids, althoug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teratophoneus
''Teratophoneus'' ("monstrous murderer"; Greek: ''teras'', "monster" and ''phoneus'', "murderer") is a genus of tyrannosaurid dinosaur which lived during the late Cretaceous period (late Campanian age, about 77 to 76 million years ago) in what is now Utah, United States, containing a single known species, ''T. curriei''. It is known from an incomplete skull and postcranial skeleton recovered from the Kaiparowits Formation. It was specifically named ''T. curriei'' in honor of Philip J. Currie. Discovery and naming Fossils of ''Teratophoneus'' were first found in the Kaiparowits Formation of southern Utah. Later, fossils from the same formation were discovered and identified as the genus. Argon-argon radiometric dating indicates that the Kaiparowits Formation was deposited between 76.1 and 74.0 million years ago, during the Campanian stage of the Late Cretaceous period. This date means that ''Teratophoneus'' lived in the middle of the Campanian stage of the Late Cretaceous. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daspletosaurus
''Daspletosaurus'' ( ; meaning "frightful lizard") is a genus of tyrannosaurid dinosaur that lived in Laramidia between about 79.5 and 74 million years ago, during the Late Cretaceous Period. The genus ''Daspletosaurus'' contains three species. Fossils of the earlier type species, ''D. torosus'', have been found in Alberta, and fossils of a later second species, ''D. wilsoni,'' and third species, ''D. horneri'', have been found only in Montana. A possible fourth species, also from Alberta, awaits formal identification. The taxon ''Thanatotheristes'' has been suggested to represent a species of ''Daspletosaurus'', ''D. degrootorum'', but this has not been widely supported. ''Daspletosaurus'' is closely related to the much larger and more recent tyrannosaurid ''Tyrannosaurus rex''. Like most tyrannosaurids, ''Daspletosaurus'' was a multi-tonne bipedal predator equipped with dozens of large, sharp teeth. ''Daspletosaurus'' had the small forelimbs typical of tyrannosaurids, although ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarbosaurus
''Tarbosaurus'' ( ; meaning "alarming lizard") is a genus of tyrannosaurid dinosaur that flourished in Asia about 70 million years ago, at the end of the Late Cretaceous Period, considered to contain a single known species, ''Tarbosaurus bataar''. Fossils have been recovered from the Nemegt Formation of Mongolia, with more fragmentary remains found further afield in the Subashi Formation of China. Although many species have been named, modern paleontologists recognize only one, ''T. bataar'', as valid. Some experts see this species as an Asian representative of the North American genus ''Tyrannosaurus''; this would make the genus ''Tarbosaurus'' redundant. ''Tarbosaurus'' and ''Tyrannosaurus'', if not synonymous, are considered to be at least closely related genera. ''Alioramus'', also from Mongolia, has previously been thought by some authorities to be the closest relative of ''Tarbosaurus'', though this has since been disproven with the discovery of '' Qianzhousaurus'' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albertosaurus NT Small
''Albertosaurus'' (; meaning "Alberta lizard") is a genus of tyrannosaurid theropod dinosaurs that lived in western North America during the Late Cretaceous Period, about 71 million years ago. The type species, ''A. sarcophagus'', was apparently restricted in range to the modern-day Canadian province of Alberta, after which the genus is named, although an indeterminate species ("cf. ''Albertosaurus'' sp.") has been discovered in the Corral de Enmedio and Packard Formations in Mexico. Scientists disagree on the content of the genus, with some recognizing ''Gorgosaurus libratus'' as a second species. As a tyrannosaurid, ''Albertosaurus'' was a bipedal predator with tiny, two-fingered hands and a massive head that had dozens of large, sharp teeth. It may have been an apex predator in its local ecosystem. While ''Albertosaurus'' was large for a theropod, it was much smaller than its larger and more famous relative ''Tyrannosaurus rex'', growing up to in length and weighing . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alioramini
Alioramini is a tribe of long-snouted tyrannosaurine tyrannosaurids from the Late Cretaceous epoch. It includes the tyrannosaurid genera ''Alioramus'' and '' Qianzhousaurus''. Although tyrannosaurids are known from a variety of places around the globe, alioramins are currently restricted to Asia in mostly Maastrichtian strata. Alioramins were medium-sized tyrannosaurids, reaching around in length. Their snouts were much shallower and gracile than other tyrannosaurids, such as the massive ''Tarbosaurus'' or ''Tyrannosaurus''. Most notably, their nasal bones were ornamented with a series of rugose, pointy bumps on its top surface. The tribe Alioramini was first coined in 1995 by George Olshevsky only to contain the at-the-time uncertain ''Alioramus''. In 2014 the tribe was formally defined as a clade-based branch containing all tyrannosaurids more related to ''Alioramus'' than to ''Albertosaurus'', ''Proceratosaurus'', and ''Tyrannosaurus''. Hence, the tribe Alioramini consists of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alioramus Remotus
''Alioramus'' (; meaning 'different branch') is a genus of tyrannosaurid theropod dinosaurs from the Late Cretaceous period of Asia. It currently contains two species. The type species, ''A. remotus'' is known from a partial skull and three foot bones recovered from the Mongolian Nemegt Formation, which was deposited in a humid floodplain about 70 million years ago. These remains were named and described by Soviet paleontologist Sergei Kurzanov in 1976. A second species, ''A. altai'', known from a much more complete skeleton also from the Nemegt Formation, was named and described by Stephen L. Brusatte and colleagues in 2009. Its relationships to other tyrannosaurid genera were at first unclear, with some evidence supporting a hypothesis that ''Alioramus'' was closely related to the contemporary species ''Tarbosaurus bataar''. However, the discovery of '' Qianzhousaurus'' indicates that it belongs to a distinct branch of tyrannosaurs, namely the tribe Alioramini. ''Alior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
