|
Tataouinea Skeleton
''Tataouinea'' is an extinct genus of sauropod dinosaur in the subfamily Rebbachisaurinae of Rebbachisauridae which lived in the Early Cretaceous of Tunisia. Only one species, ''T. hannibalis'', is known. Discovery and naming The first known elements of the holotype were discovered in the Aïn el Guettar Formation in 2011 by Aldo Luigi Bacchetta, but he was unable to excavate the specimen until 2012. The remains were subsequently studied by Federico Fanti, Andrea Cau, Mohsen Hassine and Michela Contessi. The genus was named in 2013. The name refers to the Tataouine Governatorate, Tunisia, and Hannibal. In 2015 more material of the holotype specimen was uncovered after the initial description were analysed. These included additional tail vertebrae. Description Its bones were extensively pneumatic, providing strong support for the theory that sauropods had birdlike respiratory systems. Key characteristics of its vertebral morphology show that ''Tatouinea'' was a rebbachisau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albian
The Albian is both an age (geology), age of the geologic timescale and a stage (stratigraphy), stage in the stratigraphic column. It is the youngest or uppermost subdivision of the Early Cretaceous, Early/Lower Cretaceous epoch (geology), Epoch/series (stratigraphy), Series. Its approximate time range is 113.0 ± 1.0 annum, Ma to 100.5 ± 0.9 Ma (million years ago). The Albian is preceded by the Aptian and followed by the Cenomanian. Stratigraphic definitions The Albian Stage was first proposed in 1842 by Alcide d'Orbigny. It was named after Alba, the Latin name for Aube (river), River Aube in France. A Global Boundary Stratotype Section and Point (GSSP), ratified by the IUGS in 2016, defines the base of the Albian as the first occurrence of the planktonic foraminiferan ''Hedbergellidae, Microhedbergella renilaevis'' at the Col de Pré-Guittard section, Arnayon, Drôme, France. The top of the Albian Stage (the base of the Cenomanian Stage and Upper Cretaceous Series) is defined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebbachisaurus
''Rebbachisaurus'' (meaning " Aït Rebbach lizard") is a genus of sauropod dinosaur of the superfamily Diplodocoidea, that lived during the Late Cretaceous period in Africa and possibly also South America about 99-97 million years ago. Remains attributed to ''Rebbachisaurus'' have been found in Morocco, Niger, Algeria, Tunisia and possibly also Argentina (if '' Rayososaurus'' is the same animal as ''Rebbachisaurus''), although only the Moroccan remains can be referred to the genus without doubt. The discovery of '' Rayososaurus'', a South American sauropod nearly identical to ''Rebbachisaurus'' which may have actually have been the same animal as ''Rebbachisaurus'', supports the theory that there was still a land connection between Africa and South America during the Early Cretaceous, long after it was commonly thought the two continents had separated.Bonaparte, J. (1996). "Cretaceous tetrapods of Argentina". ''Münchner Geowissenschaften Abhandlungen'' 30: 73-130. History of disc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demandasaurus
''Demandasaurus'' (meaning "Sierra de la Demanda, Demanda lizard") is a genus of Rebbachisauridae, rebbachisaurid sauropod dinosaur from early Cretaceous (late Barremian — early Aptian stage) deposits of Spain. ''Demandasaurus'' is known from an incomplete but associated skeleton that includes Cranium, cranial and postcranial remains. It was collected from the Castrillo de la Reina Formation in Burgos Province of Spain. It was first named by Fidel Torcida Fernández-Baldor, José Ignacio Canudo, Pedro Huerta, Diego Montero, Xabier Pereda Suberbiola and Leonardo Salgado in 2011 in paleontology, 2011 and the type species is ''Demandasaurus darwini''. Description It has a series of singular characteristics that allow this differentiation as a new genus and species. For example, teeth with a special ornamentation of ridges in its enamel, cervical vertebrae with bone structures that are not present in other dinosaurs, neural arches of the dorsal vertebrae crossed entirely by two p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katepensaurus
''Katepensaurus'' ("hole lizard") is an extinct genus of rebbachisaurid sauropod dinosaur known from the Late Cretaceous of south-central Chubut Province of central Patagonia, Argentina. It contains a single species, ''Katepensaurus goicoecheai''. Fossil record The holotype and only known specimen of ''Katepensaurus goicoecheai'' is UNPSJB-PV 1007, a partial skeleton from the Lower Member of the Bajo Barreal Formation of Chubut Province, Argentina. The specimen preserves one skull bone (a Frontal bone, frontal), three cervical vertebrae, six dorsal vertebrae, five caudal vertebrae, and several difficult-to-identify fragments, which probably include portions of additional vertebrae as well as possible fragments of some limb bones (a metacarpal or metatarsal and an Talus bone, astragalus). It represents an individual that was at least seven years old and had not finished growing when it died. The Lower Member of the Bajo Barreal Formation is considered to date to the Cenomanian or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limaysaurus
''Limaysaurus'' ("Limay lizard") is a genus represented by a single species of rebbachisaurid sauropod dinosaurs, which lived during the mid-Cretaceous period, about 99.6 to 94 million years ago, in the Cenomanian, in what is now South America (northwestern Patagonia and northeastern Brazil). Discovery ''Limaysaurus'' includes a single type species, ''Limaysaurus tessonei'', which was originally referred to the genus ''Rebbachisaurus'' as ''Rebbachisaurus tessonei'', an African species, by Jorge Calvo and Leonardo Salgado in 1995.Calvo, J. O. and Salgado, L. (1995).''Rebbachisaurus tessonei'' sp. nov. A new sauropod from the Albian-Cenomanian of Argentina; new evidence on the origin of the Diplodocidae" ''Gaia'', 11: 13-33. However, a generic separation was proposed by Salgado, Alberto Garrido, Sergio Cocca and Juan Cocca, and the genus ''Limaysaurus'' was named in 2004. The generic name is derived from Río Limay which borders the region and from the specific name, ''tesson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathartesaura
''Cathartesaura'' is a genus of rebbachisaurid sauropod dinosaur hailing from the Late Cretaceous strata of the Huincul Formation, at the "La Buitrera" locality, in the Neuquén Basin of Río Negro Province, Argentina. The fossil remains, described by Gallina and Apesteguía in 2005, consist of a partial skeleton including vertebrae and limb bones. These were found at the base of the formation, which spans the Cenomanian and Coniacian epochs, in mudstone and sandstone levels. Etymology The generic name is composed of '' Cathartes'', the New World vulture genus and ''-saura'', feminine declination of the Greek term ''sauros'', "lizard". It also implies the juxtaposition of the components of the scientific name of the turkey vulture, ''Cathartes aura'', whose Spanish name, "''buitre''", named the locality where the fossil was found due to the abundance of such birds there. The specific epithet honors the Argentinian adhesive company Anaeróbicos for providing field and laborator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limaysaurinae
Rebbachisauridae is a family of sauropod dinosaurs known from fragmentary fossil remains from the Cretaceous of South America, Africa, North America, Europe and possibly Central Asia. Taxonomy In 1990 sauropod specialist Jack McIntosh included the first known rebbachisaurid genus, the giant North African sauropod ''Rebbachisaurus'', in the family Diplodocidae, subfamily Dicraeosaurinae, on the basis of skeletal details. With the discovery in subsequent years of a number of additional genera, it was realised that ''Rebbachisaurus'' and its relatives constituted a distinct group of dinosaurs. In 1997 the Argentine paleontologist José Bonaparte described the family Rebbachisauridae, and in 2011 Whitlock defined two new subfamilies within the group: Nigersaurinae and Limaysaurinae. Khebbashia is a clade within Rebbachisauridae. P. D. Mannion, P. Upchurch, D. Schwarz and O. Wings. (2019). Taxonomic affinities of the putative titanosaurs from the Late Jurassic Tendaguru Formation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comahuesaurus
''Comahuesaurus'' (meaning "Comahue lizard", after the region in which it was found) is a genus of sauropod dinosaur of the family Rebbachisauridae. It was found in the Lohan Cura Formation, in Argentina and lived during the Early Cretaceous, Aptian to Albian. The type species is ''C. windhauseni'', named for Anselmo Windhausen, who contributed significantly to the geological study of Patagonia. Discovery and naming The holotype of ''Comahuesaurus'', given the specimen number MOZ-PV 6722, was discovered on the northern slope of a locality called Cerro Aguada del Leon in the south-central area of the Neuquén Basin, which corresponds to the Lohan Cura Formation. It was originally assigned to '' Limaysaurus sp.'' by Leonardo Salgado and colleagues in 2004. Despite being referred to an existing genus, the authors remarked that there were significant enough anatomical differences to justify the possible naming of a new species. The discovery and preparation of additional specimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Histriasaurus
''Histriasaurus'' (HIS-tree-ah-SAWR-us) (meaning "Istria lizard") was a genus of dinosaur from the Early Cretaceous (Hauterivian to Barremian stages, around 135-125 million years ago). Discovery and naming The holotype, specimen WN V-6, was found in a bonebed in lacustrine limestone exposed on the seafloor off the coast of the town of Bale on the Istrian peninsula in Croatia by Dario Boscarolli during the 1980s, and described in 1998 by Dalla Vecchia. The type species, ''H. boscarollii'', was described by Dalla Vecchia in 1998. The specific name honours the discoverer of the site, Darío Boscarolli. Although some authors consider ''Histriasaurus'' a dubious taxon, more recent papers support the original classification.Apesteguía, S. (2005). "Evolution in the hyposphene-hypantrum complex within Sauropoda". ''In'' K. Carpenter & V. Tidwell (eds.), ''Thunder-Lizards: The Sauropodomorph Dinosaurs''. Indiana University Press, Bloomington 248-267 Classification It was a diplodo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zapalasaurus
''Zapalasaurus'' is a genus of sauropod dinosaur described by Leonardo Salgado, Ismar de Souza Carvalho and Alberto Garrido in 2006. It was named after the city of Zapala, which is approximately away from where the holotype was discovered. The type species, ''Zapalasaurus bonapartei'', was found in the La Amarga Formation of the Neuquén Basin, Neuquén Province, Argentina. It was a diplodocoid, a long-necked herbivore, and it lived during the Early Cretaceous. The authors conclude from examining the skeleton that "The record of ''Zapalasaurus bonapartei'' shows that, at least in the Neuquén Basin Neuquén Basin () is a sedimentary basin covering most of Neuquén Province in Argentina. The basin originated in the Jurassic and developed through alternating continental and marine conditions well into the Tertiary. The basin bounds to the wes ..., basal diplodocoids were more diverse than previously thought." ''Zapalasaurus'' is assumed to have a long neck which would have been d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazonsaurus
''Amazonsaurus'' ( , 'Amazon lizard') is a genus of diplodocoid sauropod dinosaur from the Early Cretaceous Period of what is now South America. It would have been a large-bodied quadrupedal herbivore with a long neck and whiplash tail. Although more derived diplodocoids were some of the longest animals ever to exist, ''Amazonsaurus'' was probably not more than 12 meters (40 ft) long. Gregory S. Paul estimated in 2010 its weight at 5000 kg. Fossils of ''Amazonsaurus'', including some back and tail vertebrae, ribs, and fragments of the pelvis, are the only dinosaur remains identifiable at the generic level from the Itapecuru Formation of Maranhão. This geologic formation dates back to the Aptian through Albian epochs of the Early Cretaceous Period, or about 125 to 100 million years ago. ''Amazonsaurus'' was recovered in sediments which are interpreted by geologists as floodplain deposits near a river delta. Description The tall neural spines on the tail vertebrae ide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
