Semiaquatic adaptations in a giant predatory dinosaur
- Nizar Ibrahim, P. Sereno, D. A. Iurino
- Environmental Science, GeographyScience
- 26 September 2014
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.
A new Plattenkalk Konservat Lagerstätte in the Upper Cretaceous of Gara Sbaa, south-eastern Morocco
- D. Martill, Nizar Ibrahim, R. Hing
- Environmental Science, Geography
- 1 August 2011
A New Pterosaur (Pterodactyloidea: Azhdarchidae) from the Upper Cretaceous of Morocco
- Nizar Ibrahim, D. Unwin, D. Martill, L. Baidder, Samir Zouhri
- Environmental Science, GeographyPLoS ONE
- 26 May 2010
A new azhdarchid pterosaur is described, Alanqa saharica nov. sp.
Tail-propelled aquatic locomotion in a theropod dinosaur
- Nizar Ibrahim, S. Maganuco, S. Pierce
- Environmental Science, GeographyNature
- 29 April 2020
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.
Geology and paleontology of the Upper Cretaceous Kem Kem Group of eastern Morocco
- Nizar Ibrahim, P. Sereno, A. Kaoukaya
- Environmental Science, GeographyZooKeys
- 21 April 2020
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.
Dinosaur Footprints and Other Ichnofauna from the Cretaceous Kem Kem Beds of Morocco
- Nizar Ibrahim, D. Varricchio, Samir Zouhri
- Geography, Environmental SciencePLoS ONE
- 6 March 2014
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.
A new species of Coloborhynchus (Pterosauria, Ornithocheiridae) from the mid-Cretaceous of North Africa
- M. Jacobs, D. Martill, Nizar Ibrahim, N. Longrich
- Geography, Environmental ScienceCretaceous research (Print)
- 1 March 2019
Sigilmassasaurus is Spinosaurus: A reappraisal of African spinosaurines
- R. S. Smyth, Nizar Ibrahim, D. Martill
- Geography, Environmental Science
- 23 May 2020
Subaqueous foraging among carnivorous dinosaurs.
- M. Fabbri, Guillermo Navalón, Nizar Ibrahim
- Environmental Science, GeographyNature
- 23 March 2022
It is demonstrated that the relationship between bone density and aquatic ecologies across extant amniotes provides a reliable inference of aquatic habits in extinct species, and spinosaurids are revealed to be aquatic specialists with surprising ecological disparity.
Evidence of a derived titanosaurian (Dinosauria, Sauropoda) in the “Kem Kem beds” of Morocco, with comments on sauropod paleoecology in the Cretaceous of Africa
- Nizar Ibrahim, C. Sasso, M. Lamanna
- Geography, Environmental Science
- 1 June 2016
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…
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