<i>Demandasaurus darwini</i>, a New Rebbachisaurid Sauropod from the Early Cretaceous of the Iberian Peninsula

Fernández-Baldor, Fidel Torcida; Canudo, José Ignacio; Huerta, Pedro; Montero, Diego; Suberbiola, Xabier Pereda; Salgado, Leonardo

doi:10.4202/app.2010.0003

Cited by 70 publications

(69 citation statements)

References 33 publications

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“…Accordingly, a European lineage of nigersaurines results bracketed by North African taxa; the latter clade is part of a mainly Gondwanan radiation. Although complicated by the basal phylogenetic position of Histriasaurus from Croatia 34 , the resulted phylogenetic framework supports the hypothesis that rebbachisaurids originated in Gondwana before its fragmentation and reached Europe across the Tethyan carbonate platforms 20,34 .…”

Section: Discussionmentioning

confidence: 59%

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A new sauropod dinosaur from the Early Cretaceous of Tunisia with extreme avian-like pneumatization

Fanti

Cau²,

Hassine

et al. 2013

Nat Commun

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Section: Discussionmentioning

confidence: 59%

“…Large elliptical pleurocoels open on the lateral surface of the anteriormost caudal centra. The boss-like eminence anteroventral to the prezygapophyses as in European Nigersaurinae is absent 19,20 . In anterior view, the neural spines are 'petal-shaped', as in most diplodocoids 21 .…”

Section: Systematic Palaeontologymentioning

confidence: 99%

A new sauropod dinosaur from the Early Cretaceous of Tunisia with extreme avian-like pneumatization

Fanti

Cau²,

Hassine

et al. 2013

Nat Commun

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“…Composite geological map and itineraries are adapted from Lavocat (1954aLavocat ( , 1955. Wilson and Allain-Osteology of Rebbachisaurus garasbae (e1000701-2) from the Barremian-Hauterivian of Spain (Pereda Suberbiola et al, 2003;Torcida Fern andez-Baldor et al, 2011;Torcida Fern andez-Baldor, 2012).…”

Section: Introductionmentioning

confidence: 99%

Osteology ofRebbachisaurus garasbaeLavocat, 1954, a diplodocoid (Dinosauria, Sauropoda) from the early Late Cretaceous–aged Kem Kem beds of southeastern Morocco

Wilson¹,

Allain

2015

Journal of Vertebrate Paleontology

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The holotype of the sauropod dinosaur Rebbachisaurus garasbae was discovered in infra-upper Cenomanian horizons of the Kem Kem region of southeastern Morocco in the 1940s and 1950s. The original materials included part of a vertebral column, some of which was found in articulation, and a scapula, a humerus, and an ischium. Of these remains, only the scapula and one of the dorsal vertebrae have been described, but in abbreviated form. Following complete preparation of the partial skeleton, careful examination and fitting of scores of fragments collected with these materials, and computed tomography imaging of the most complete vertebra, we present a complete description of the holotype of Rebbachisaurus garasbae. Our description identifies several autapomorphies of the dorsal and caudal vertebrae, both relating to the shape of the vertebrae and the architecture of their laminae. Based on our reassessment of its anatomy, Rebbachisaurus is recovered as a member of an Afro-European clade that includes Nigersaurus and Demandasaurus. Due to the large size of one of its dorsal vertebrae (ca. 1.45 m tall), Rebbachisaurus has been considered to be a large sauropod. The size of the vertebral centra and the length and cross-sectional area of the humerus of Rebbachisaurus, however, indicate this individual weighed 7915-12,015 kg, which is slightly larger than Amargasaurus but comparable in size to some individuals of Dicraeosaurus. The dorsal vertebrae of Rebbachisaurus and other rebbachisaurids have been suggested to be highly mobile, but results suggest that anatomical features of the vertebrae actually limited rotation and increased resistance to dorsoventrally directed forces applied to the transverse processes.

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“…To associate the trackway PT1 with a specific group of sauropods is not really prudent. Nonetheless, discarding titanosaurs, the other main group of sauropods that inhabited Europe during the late Early Cretaceous were the rebbachisaurids (Mannion et al, 2011;Torcida Fernández-Baldor et al, 2011). The morphology of rebbachisaurid tracks so far is not well understood.…”

Section: Discussionmentioning

confidence: 99%

Dinosaur tracks from the Early Cretaceous of Parede tracksite (Cascais, Portugal): New implications on the sauropod palaeobiology of the Iberian Peninsula

Santos

Callapez

Castanera

et al. 2015

Journal of Iberian Geology

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A recently discovered Early Cretaceous (early late Albian) dinosaur tracksite at Parede beach (Cascais, Portugal) reveals evidence of dinoturbation and at least two sauropod trackways. One of these trackways can be classified as narrow-gauge, which represents unique evidence in the Albian of the Iberian Peninsula and provides for the improvement of knowledge of this kind of trackway and its probable trackmaker, in an age when the sauropod record is scarce. These dinosaur tracks are preserved on the upper surface of a marly limestone bed that belongs to the Galé Formation (Água Doce Member, middle to lower upper Albian). The study of thin-sections of the beds C22/24 and C26 in the Parede section has revealed a microfacies composed of foraminifers, radiolarians, ostracods, corals, bivalves, gastropods, and echinoids in a mainly wackestone texture with biomicritic matrix. These assemblages match with the lithofacies, marine molluscs, echinids, and ichnofossils sampled from the section and indicate a shallow marine, inner shelf palaeoenvironment with a shallowing-upward trend. The biofacies and the sequence analysis are compatible with the early late Albian age attributed to the tracksite. These tracks and the moderate dinoturbation index indicate sauropod activity in this palaeoenvironment. Titanosaurs can be dismissed as possible trackmakers on the basis of the narrow-gauge trackway, and probably by the kidney-shaped manus morphology and the pes-dominated configuration of the trackway. Narrow-gauge sauropod trackways have been positively associated with coastal palaeoenvironments, and the Parede tracksite supports this interpretation. In addition, this tracksite adds new data about the presence of sauropod pes-dominated trackways in cohesive substrates. As the Portuguese Cretaceous sauropod osteological remains are very scarce, the Parede tracksite yields new and relevant evidence of these dinosaurs. Furthermore, the Parede tracksite is the youngest evidence of sauropods in the Portuguese record and some of the rare evidence of sauropods in Europe during the Albian. This discovery enhances the palaeobiological data for the Early Cretaceous Sauropoda of the Iberian Peninsula, where the osteological remains of these dinosaurs are relatively scarce in this region of southwestern Europe. Therefore, this occurrence is also of overall interest due to its impact on Cretaceous Sauropoda palaeobiogeography.Keywords: Sauropod tracks, intertidal palaeoenvironment, Lower Cretaceous, upper Albian, Lusitanian Basin, Portugal Resumen El reciente descubrimiento de huellas de dinosaurios del Cretácico Inferior (inicio del Albiense tardío) en la playa de Parede (Cascais, Portugal) ha revelado evidencias de dinoturbación y al menos dos rastros de saurópodos. Uno de ellos puede clasificarse como estrecho y representa la única evidencia de este tipo de rastros en el Albiense de la Península Ibérica. Estos nuevos datos permiten mejorar el conocimiento tanto de este tipo de rastros como de su posible productor, en una edad en la...

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Demandasaurus darwini, a New Rebbachisaurid Sauropod from the Early Cretaceous of the Iberian Peninsula

Abstract: A new medium−sized rebbachisaurid sauropod from the Castrillo la Reina Formation (Upper Barremian-Lower Aptian)

Cited by 70 publications

References 33 publications

A new sauropod dinosaur from the Early Cretaceous of Tunisia with extreme avian-like pneumatization

A new sauropod dinosaur from the Early Cretaceous of Tunisia with extreme avian-like pneumatization

Osteology ofRebbachisaurus garasbaeLavocat, 1954, a diplodocoid (Dinosauria, Sauropoda) from the early Late Cretaceous–aged Kem Kem beds of southeastern Morocco

Dinosaur tracks from the Early Cretaceous of Parede tracksite (Cascais, Portugal): New implications on the sauropod palaeobiology of the Iberian Peninsula

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