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Diamantinasauria
Diamantinasauria is an extinct clade of non- lithostrotian titanosaurian sauropod dinosaurs, known from the early Late Cretaceous (Cenomanian-Turonian) of South America and Australia. It was named by Poropat and colleagues in 2021, and contains four genera: ''Australotitan'', ''Savannasaurus'' and ''Diamantinasaurus'' from the Winton Formation of Queensland, as well as ''Sarmientosaurus'' from the Bajo Barreal Formation of Patagonia. The existence of the clade indicates connectivity between Australia and South America via Antarctica during the Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th ... period. Though Diamantinasauria has been recovered consistently as a clade in the phylogenetic analyses of Poropat and colleagues, its placement within Titanosauria has fluctuate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australotitan
''Australotitan'' () is an extinct genus of titanosaurian sauropod that existed during the Cenomanian-Turonian age of the Late Cretaceous in what is now southern-central Queensland, Australia. The genus contains a single species, ''Australotitan cooperensis''. Discovery and naming ''Australotitan'' was discovered in 2005 within the Winton Formation of southwest Queensland, Australia, near the town of Eromanga. Sandy Mackenzie, the discoverer, had already collected other bones on the land of his parents in 2004. The fossil material was then prepared and excavated in conjunction with the Queensland Museum and the Eromanga Natural History Museum between November 2005 and April 2010. It was nicknamed "Cooper" after its discovery being from the Cooper-Eromanga Basin, Cooper Creek system, ‘the Cooper Country”. The holotype, EMF102 (nicknamed "Cooper"), was described in 2021 on the basis of a partial skeleton consisting of a partial left scapula, partial left and complete right hum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanosauria
Titanosaurs (or titanosaurians; members of the group Titanosauria) were a diverse group of sauropod dinosaurs, including genera from all seven continents. The titanosaurs were the last surviving group of long-necked sauropods, with taxa still thriving at the time of the extinction event at the end of the Cretaceous. This group includes some of the largest land animals known to have ever existed, such as ''Patagotitan''—estimated at long with a weight of —and the comparably-sized ''Argentinosaurus'' and ''Puertasaurus'' from the same region. The group's name alludes to the mythological Titans of ancient Greek mythology, via the type genus (now considered a ''nomen dubium)'' ''Titanosaurus''. Together with the brachiosaurids and relatives, titanosaurs make up the larger sauropod clade Titanosauriformes. Titanosaurs have long been a poorly-known group, and the relationships between titanosaur species are still not well-understood. Description Titanosauria have the largest ran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamantinasaurus
''Diamantinasaurus'' is a genus of titanosaurian sauropod from Australia that lived during the early Late Cretaceous, about 94 million years ago. The type species of the genus is ''D. matildae'', first described and named in 2009 in paleontology, 2009 by Scott Hocknull and colleagues based on fossil finds in the Winton Formation. Meaning "Diamantina lizard", the name is derived from the location of the nearby Diamantina River and the Ancient Greek, Greek word ''sauros'', "lizard". The specific epithet is from the Australian song Waltzing Matilda, also the locality of the holotype and paratype. The known skeleton includes most of the forelimb, pectoral girdle, shoulder girdle, pelvis, hindlimb and ribs of the holotype, and one shoulder bone, a radius bone, radius and some vertebrae of the paratype. History of discovery The holotype of ''Diamantinasaurus'' was first uncovered over four seasons of excavations near Winton, Queensland, Australia. The bones were found alongside the h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanosauria
Titanosaurs (or titanosaurians; members of the group Titanosauria) were a diverse group of sauropod dinosaurs, including genera from all seven continents. The titanosaurs were the last surviving group of long-necked sauropods, with taxa still thriving at the time of the extinction event at the end of the Cretaceous. This group includes some of the largest land animals known to have ever existed, such as ''Patagotitan''—estimated at long with a weight of —and the comparably-sized ''Argentinosaurus'' and ''Puertasaurus'' from the same region. The group's name alludes to the mythological Titans of ancient Greek mythology, via the type genus (now considered a ''nomen dubium)'' ''Titanosaurus''. Together with the brachiosaurids and relatives, titanosaurs make up the larger sauropod clade Titanosauriformes. Titanosaurs have long been a poorly-known group, and the relationships between titanosaur species are still not well-understood. Description Titanosauria have the largest ran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarmientosaurus
''Sarmientosaurus'' is a genus of titanosaurian sauropod dinosaur belonging to the Titanosauria. It lived in what is now South America, specifically Argentina, during the Upper Cretaceous Period about 95 million years ago. The type species is ''Sarmientosaurus musacchioi''. Discovery In 1997, paleontologist Rubén D.F. Martínez, at the ''Estancia Laguna Palacios'' of the Goicoechea family in Chubut province, discovered a sauropod skull. This proved to be connected to the first few cervical vertebrae. In 2016, the type species ''Sarmientosaurus musacchioi'' was named and described by Rubén Darío Francisco Martínez, Matthew Carl Lamanna, Fernando Emilio Novas, Ryan C. Ridgely, Gabriel Andrés Casal, Javier E. Martínez, Javier R. Vita and Lawrence M. Witmer. The generic name refers to the town of Sarmiento. The specific name honours the late Eduardo Musacchio, an educator at the ''Universidad Nacional de la Patagonia San Juan Bosco''. The Life Science Identifiers are 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baotianmansaurus
''Baotianmansaurus'' (named after the Baotianman National Nature Reserve) is a genus of titanosaur sauropod dinosaur. Its fossils have been found in Upper Cretaceous rocks in Henan, China, within the Gaogou Formation. The type species is ''B. henanensis'', described in 2009. The holotype is 41H III-0200. Remains of the fossils were vertebrae, ribs and scapula fragments. It was probably a close relative of ''Opisthocoelicaudia'' and ''Dongyangosaurus ''Dongyangosaurus'' is a genus of titanosaurian sauropod dinosaur from the Late Cretaceous. The only species is ''Dongyangosaurus sinensis'', from which only a single fragmentary skeleton is known, coming from the Zhejiang province of eastern Chin ...'' in Saltasauridae. References Late Cretaceous dinosaurs of Asia Titanosaurs Fossil taxa described in 2009 Paleontology in Henan Taxa named by Lü Junchang {{Cretaceous-reptile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isisaurus
''Isisaurus'' (named after the Indian Statistical Institute) is a genus of titanosaurian dinosaur from the Late Cretaceous Lameta Formation of India. The genus contains a single species, ''Isisaurus colberti''. Discovery and Naming The type specimen of ''Isisaurus colberti'', ISI R 335/1-65, was originally described and named as ''Titanosaurus colberti'' by Sohan Lal Jain and Saswati Bandyopadhyay in 1997. The specific name honours Edwin Harris Colbert. In 2003, the fossils were designated as belonging to its own genus by Wilson and Upchurch. The generic name, "''Isisaurus''," combines a reference to the Indian Statistical Institute (ISI) with the Greek "saurus," meaning "lizard." It had a short, vertically directed neck and long forelimbs, making it considerably different from other sauropods. The humerus is 148 centimetres long. ''Isisaurus'' is known from better remains than many other titanosaurs that were known at the time of its description. Much of its postcranial ske ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapetosaurus
''Rapetosaurus'' ( ) is a genus of titanosaurian sauropod dinosaur that lived in Madagascar from 70 to 66 million years ago, at the end of the Cretaceous Period. Only one species, ''Rapetosaurus krausei'', has been identified. Like other sauropods, ''Rapetosaurus'' was a quadrupedal herbivore; it is calculated to have reached lengths of 15 metres (49 ft). Description ''Rapetosaurus'' was a fairly typical sauropod, with a short and slender tail, a very long neck and a huge, elephant-like body. Its head resembles the head of a diplodocid, with a long, narrow snout and nostrils on the top of its skull. It was a herbivore and its small, pencil-like teeth were good for ripping the leaves off trees but not for chewing. It was fairly modest in size, for a titanosaur. The juvenile specimen measured from head to tail, and "probably weighed about as much as an elephant". An adult would have been about twice as long ( in length) which is still less than half the length of its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tapuiasaurus
''Tapuiasaurus'' (meaning " Tapuia lizard") is a genus of titanosaur which lived during the Lower Cretaceous period (Aptian age) in what is now Minas Gerais, Brazil. Its fossils, including a partial skeleton with a nearly complete skull, have been recovered from the Quiricó Formation of the São Francisco Basin in Minas Gerais, eastern Brazil. This genus was named by Hussam Zaher, Diego Pol, Alberto B. Carvalho, Paulo M. Nascimento, Claudio Riccomini, Peter Larson, Rubén Juárez Valieri, Ricardo Pires Domingues, Nelson Jorge da Silva Jr. and Diógenes de Almeida Campos in 2011, and the type species is ''Tapuiasaurus macedoi''. Classification ''Tapuiasaurus'' was originally assigned to Nemegtosauridae by its original describers, but two subsequent cladistic analyses have recovered it as only distantly related to ''Nemegtosaurus'', with Wilson ''et al.'' (2016) recovering the genus outside the Lithostrotia, and Carballido ''et al.'' (2017) recovering it as closely relate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemegtosaurus
''Nemegtosaurus'' (meaning 'Reptile from the Nemegt') was a sauropod dinosaur from the Late Cretaceous Period of what is now Mongolia. It was named after the Nemegt Basin in the Gobi Desert, where the remains — a single skull — were found. The skull resembles diplodocoids in being long and low, with pencil-shaped teeth. However, recent work has shown that ''Nemegtosaurus'' is in fact a titanosaur, closely related to animals such as ''Saltasaurus'', ''Alamosaurus'' and ''Rapetosaurus''. Discovery and taxonomy The skull of ''Nemegtosaurus'' comes from the same beds as the titanosaur ''Opisthocoelicaudia'', which is known from a skeleton lacking the neck and skull. Originally, the referral of ''Nemegtosaurus'' to Diplodocoidea and ''Opisthocoelicaudia'' to Camarasauridae argued that the two represented different species. Both of these genera represent advanced titanosaurians, however, raising the possibility that the two are in fact the same animal. Relocation of the ''Nemegtosa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colossosauria
Colossosauria is a clade of titanosaur sauropods from the latest Early Cretaceous through the Late Cretaceous of South America. The group was originally named by Bernardo González-Riga ''et al.'' in 2019 in paleontology, 2019 and defined as the "most inclusive clade containing ''Mendozasaurus neguyelap'' but not ''Saltasaurus loricatus'' or ''Epachthosaurus sciuttoi''". The clade contains different taxa depending on the phylogenetic analysis used, in the defining paper the only subgroups were Rinconsauria and Lognkosauria, but alternate phylogenies published previously had also included various similar titanosaurs such as ''Aeolosaurus'', ''Bonitasaura'', ''Drusilasaura'', ''Overosaurus'' and ''Quetecsaurus''. The phylogenetic analysis of González-Riga ''et al.'' (2019) placed Colossosauria as sister taxa to ''Epachthosaurus'', ''Pitekunsaurus'' and a larger clade including Saltasauridae. Due to the labile position of ''Epachthosaurus'' in titanosaur phylogeny, Carballido and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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