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Nigersaurinae
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 of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nigersaurus
''Nigersaurus'' () is a genus of rebbachisaurid sauropod dinosaur that lived during the middle Cretaceous period, about 115 to 105 million years ago. It was discovered in the Elrhaz Formation in an area called Gadoufaoua, in Niger. Fossils of this dinosaur were first described in 1976, but it was only named ''Nigersaurus taqueti'' in 1999 after further and more complete remains were found and described. The genus name means "Niger reptile", and the specific name honours the palaeontologist Philippe Taquet, who discovered the first remains. Small for a sauropod, ''Nigersaurus'' was about long, and had a short neck. It weighed around , comparable to a modern elephant. Its skull was very specialised for feeding, with large fenestrae and thin bones. It had a wide muzzle filled with more than 500 teeth, which were replaced at a rapid rate: around every 14 days. The jaws may have borne a keratinous sheath. Unlike other tetrapods, the tooth-bearing bones of its jaws were rotated ... [...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] |
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] |
Agustinia
''Agustinia'' () is a genus of sauropod dinosaur from the Early Cretaceous of South America. The genus contains a single species, ''A. ligabuei'', known from a single specimen that was recovered from the Lohan Cura Formation of Neuquén Province in Argentina. It lived about 116–108 million years ago, in the Aptian–Albian stages of the Early Cretaceous Period. Discovery and naming The holotype and only known specimen of ''Agustinia'', MCF-PVPH-110, was discovered in 1997 by an expedition from the Museo Argentino de Ciencias Naturales in Buenos Aires, a few kilometers west of the city of Picún Leufú in the south of the Neuquén province. The rocks of the site belong stratigraphically to the upper section of the Lohan-Cura Formation . This excursion was part of a program run by the museum in 1996 and 1997 to discover new vertebrate fossils in the Lohan-Cura Formation. The generic name ''Agustinia'' honors then-student Agustin Martinelli, who discovered the skeleton and wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Itapeuasaurus
''Itapeuasaurus'' (meaning "Itapeua lizard") is a genus of rebbachisaurid sauropod dinosaur from the Alcântara Formation (Itapecuru Group) of Maranhão in Brazil. The type and only species is ''Itapeuasaurus cajapioensis''. It is the most complete Cenomanian-aged diplodocoid known from South America and it is also the first reported Cenomanian-aged rebbachisaurid discovered in South America. Discovery and naming In November 2014, fisherman Carlos Wagner Silva discovered a fossilised humerus on the beach at Itapeua. In May 2015, paleontologist Manuel Alfredo Medeiros and his students were sent in and they secured several bones, including the holotype, UFMA. 1.10.1960a, which consists of six vertebrae, and a paratype containing around six to seven vertebrae, a humerus and a partial ischium - the largest preserved vertebra reached up to . Because the location where the holotype was found is an intertidal area, excavating the holotype was very hard and could only be excavated arou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campananeyen
''Campananeyen'' is a genus of rebbachisaurid sauropod dinosaur from the Late Cretaceous (Cenomanian) Candeleros Formation of Argentina. The genus contains a single species, ''Campananeyen fragilissimus'', known from a fragmentary skeleton. Discovery and naming The ''Campananeyen'' holotype specimen, MMch-PV 71, was discovered in sediments of the Candeleros Formation (Barda Atravesada de Las Campanas locality) near Villa El Chocón in Neuquén Province, Argentina. The specimen consists of an incomplete skeleton, including the braincase and the right quadrate from the skull, a partial dorsal, sacral, and caudal vertebra, pieces of the ilia, and two ungual phalanges. The cranial remains were described in a scientific paper published in 2016, but left unnamed. In 2024, Lerzo et al. described the specimen as a new genus and species of rebbachisaurid. The generic name, ''Campananeyen'', is derived from Las Campanas—the name of the type locality—combined with the Mapu ... [...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] |
Tataouinea
''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 Ain el Guettar Formation, 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 ''Tato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Jurassic
The Late Jurassic is the third Epoch (geology), epoch of the Jurassic Period, and it spans the geologic time scale, geologic time from 161.5 ± 1.0 to 143.1 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic stratum, strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the emergence of the Atlantic Ocean, which initially was relatively narrow. Life forms This epoch is well known for many famous types of d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rayososaurus
''Rayososaurus'' is an extinct genus of sauropod dinosaur in the family Rebbachisauridae. ''Rayososaurus'' was named by Argentinian paleontologist José Bonaparte in 1996. Its type and only accepted species is ''Rayososaurus agrioensis''. The species ''Limaysaurus tessonei'' was at one point included in ''Rayososaurus'' as ''Rayososaurus tessonei''. History of discovery The only known specimen of ''Rayososaurus agrioensis'' was discovered in 1991 by a team led by José F. Bonaparte, at a locality three kilometers south of Agrio del Medio in Picunches Department, Neuquén Province, Argentina. In 1996, Bonaparte described the remains as a new genus and species of sauropod, ''Rayososaurus agrioensis''. Bonaparte believed that the strata the specimen was excavated from belonged to the Rayoso Formation, and named the genus after it. The species name refers to the Agrio River, which the specimen was found near. Bonaparte argued that the distinctive morphology of the scapula indicated ... [...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] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
