Nizar Ibrahim

Publications24
h-index11
Citations472
Highly Influential Citations37
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Semiaquatic adaptations in a giant predatory dinosaur
TLDR
Adaptations for a semiaquatic lifestyle in the dinosaur Spinosaurus aegyptiacus are described, including retraction of the fleshy nostrils to a position near the mid-region of the skull and an elongate neck and trunk that shift the center of body mass anterior to the knee joint. Expand
A new Plattenkalk Konservat Lagerstätte in the Upper Cretaceous of Gara Sbaa, south-eastern Morocco
Laminated, dolomitised marine limestones within a transgressive fluvio-lagoonal-carbonate platform sequence at Gara Sbaa in the Kem Kem region of south eastern Morocco yield well preserved marine… Expand
A New Pterosaur (Pterodactyloidea: Azhdarchidae) from the Upper Cretaceous of Morocco
TLDR
A new azhdarchid pterosaur is described, Alanqa saharica nov. sp. Expand
Dinosaur Footprints and Other Ichnofauna from the Cretaceous Kem Kem Beds of Morocco
TLDR
Body fossil and ichnofossil records together provide a detailed view of faunal diversity and local conditions within a fluvial and deltaic depositional setting on the northwestern coast of Africa toward the end of the Cretaceous. Expand
Evidence of a derived titanosaurian (Dinosauria, Sauropoda) in the “Kem Kem beds” of Morocco, with comments on sauropod paleoecology in the Cretaceous of Africa
A well preserved middle caudal vertebra from middle Cretaceous (Albian–lower Cenomanian) deposits informally known as the “Kem Kem beds” exposed in the Gara Sbaa region of Morocco is attributed to a… Expand
A new species of Coloborhynchus (Pterosauria, Ornithocheiridae) from the mid-Cretaceous of North Africa
Abstract Pterosaur faunas experienced dramatic turnover between the Early and Late Cretaceous, but fossils documenting this transition are rare. The mid-Cretaceous Kem Kem beds of Morocco are one of… Expand
New toothed pterosaurs (Pterosauria: Ornithocheiridae) from the middle Cretaceous Kem Kem beds of Morocco and implications for pterosaur palaeobiogeography and diversity
Abstract Pterodactyloid pterosaurs underwent a diversification in the Late Jurassic and Early Cretaceous, followed by a major turnover event in the mid-Cretaceous, when ornithocheirids and basal… Expand
Geology and paleontology of the Upper Cretaceous Kem Kem Group of eastern Morocco
TLDR
The Kem Kem vertebrate assemblage, currently the best documented association just prior to the onset of the Cenomanian-Turonian marine transgression, captures the taxonomic diversity of a widespread northern African fauna better than any other contemporary assemblages from elsewhere in Africa. Expand
A new tapejarid (Pterosauria, Azhdarchoidea) from the mid-Cretaceous Kem Kem beds of Takmout, southern Morocco
Abstract A new pterosaur, Afrotapejara zouhrii gen. et sp. is described on the basis of a partial rostral fragment from the Cretaceous Kem Kem beds of Takmout, near Erfoud in southern Morocco. The… Expand
Tail-propelled aquatic locomotion in a theropod dinosaur
TLDR
Discovery that the giant theropod dinosaur Spinosaurus has a large flexible tail indicates that it was primarily aquatic and swam in a similar manner to extant tail-propelled aquatic vertebrates. Expand
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