Nathalie Bardet

Centre National de la Recherche Scientifique

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Xabier Pereda Suberbiola

University of the Basque Country

Peggy Vincent

Centre National de la Recherche Scientifique

Alexandra Houssaye

Centre National de la Recherche Scientifique

Valentin Fischer

University of Liège

Nour‐Eddine Jalil

Centre National de la Recherche Scientifique

Mbarek Amaghzaz

OCP Group (Morocco)

Baâdi Bouya

OCP Group (Morocco)

José Carmelo Corral

Museo Nacional de Ciencias Naturales

Emmanuel Gheerbrant

Sorbonne Université

Roger Benson

American Museum of Natural History

Cooperative Institutions

Centre National de la Recherche Scientifique

Sorbonne Université

Muséum national d'Histoire naturelle

Institute of Paleoprimatology Human Paleontology Evolution and Paleoenvironments

Centre de recherche en paléontologie - Paris

University of the Basque Country

École Normale Supérieure de Lyon

Université Claude Bernard Lyon 1

Laboratoire de Géologie de Lyon : Terre, Planètes et Environnement

Universidad Complutense de Madrid

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The first record of a sauropod dinosaur from the Late Cretaceous phosphates of Morocco

Journal of African Earth Sciences (2004)

Xabier Pereda Suberbiola Nathalie Bardet Mohamed Iarochène Baâdi Bouya Mbarek Amaghzaz

10.1016/j.jafrearsci.2004.07.002

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Citations (41)

Retour à l’eau !

EDP Sciences eBooks (2022)

Alexandra Houssaye Nathalie Bardet Peggy Vincent

10.1051/978-2-7598-2717-6.c086

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Citations (0)

Ecological signal in the size and shape of marine amniote teeth

Proceedings of the Royal Society B Biological Sciences (2022)

Valentin Fischer Rebecca F. Bennion Davide Foffa Jamie A. MacLaren Matthew R. McCurry

Amniotes have been a major component of marine trophic chains from the beginning of the Triassic to present day, with hundreds of species. However, inferences of their (palaeo)ecology have mostly been qualitative, making it difficult to track how dietary niches have changed through time and across clades. Here, we tackle this issue by applying a novel geometric morphometric protocol to three-dimensional models of tooth crowns across a wide range of raptorial marine amniotes. Our results highlight the phenomenon of dental simplification and widespread convergence in marine amniotes, limiting the range of tooth crown morphologies. Importantly, we quantitatively demonstrate that tooth crown shape and size are strongly associated with diet, whereas crown surface complexity is not. The maximal range of tooth shapes in both mammals and reptiles is seen in medium-sized taxa; large crowns are simple and restricted to a fraction of the morphospace. We recognize four principal raptorial guilds within toothed marine amniotes (durophages, generalists, flesh cutters and flesh piercers). Moreover, even though all these feeding guilds have been convergently colonized over the last 200 Myr, a series of dental morphologies are unique to the Mesozoic period, probably reflecting a distinct ecosystem structure.

Amniote

10.1098/rspb.2022.1214

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Citations (22)

Mosasaurus beaugei Arambourg, 1952 (Squamata, Mosasauridae) from the Late Cretaceous phosphates of Morocco

Geobios (2004)

Nathalie Bardet Xabier Pereda Suberbiola Mohamed Iarochène Fatima Bouyahyaoui Baâdi Bouya

10.1016/j.geobios.2003.02.006

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The oldest African crocodylian: phylogeny, paleobiogeography, and differential survivorship of marine reptiles through the Cretaceous-Tertiary boundary

Journal of Vertebrate Paleontology (2008)

Stéphane Jouve Nathalie Bardet Nour‐Eddine Jalil Xabier Pereda Suberbiola Baâdi Bouya

ABSTRACT A gavialoid crocodylian from the Maastrichtian of the Oulad Abdoun phosphatic Basin (Morocco) is described, representing the oldest known crocodylian from Africa. The specimen consists of a skull that exhibits several features not found in other gavialoids, and a new genus and species is erected, Ocepesuchus eoafricanus. A phylogenetic analysis has been conducted including 201 characters and 71 taxa, where Ocepesuchus eoafricanus appears as the most basal African gavialoid, and the South American gavialoids are paraphyletic. This paraphyly has strong biogeographic implications, and the previous hypothesis of South American and Asian assemblages derived from African gavialoids should be reviewed. The historical biogeography of Gavialoidea is probably more complex than previously supposed. The phosphatic deposits of Morocco provide a unique opportunity to study the vertebrate faunal turnover across the Cretaceous-Tertiary (KT) boundary. The crocodyliforms are very scarce in the Maastrichtian marine basins of Africa which are dominated by mosasaurid squamates. The latter became extinct by the KT boundary, while crocodyliforms survived and diversified in the Paleocene. Mosasaurids and crocodyliforms both lived in probably comparable marine environments during the Maastrichtian. The selectivity of the KT boundary extinctions remains to be explained; since freshwater environments are known for having been less affected by the KT crisis than marine ones, a freshwater lifestyle of the juveniles, like in extant marine crocodiles and unlike the fully marine mosasaurs, could explain this difference with regard to survivorship.

Paraphyly

10.1671/0272-4634(2008)28[409:toacpp]2.0.co;2

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Citations (85)

Cenomanian vertebrates from Algora (central Spain): New data on the establishment of the European Upper Cretaceous continental faunas

Cretaceous Research (2020)

Adán Pérez‐García Nathalie Bardet Marı́a Antonia Fregenal-Martı́nez Marcos Martín‐Jiménez Pedro Mocho

Cenomanian

10.1016/j.cretres.2020.104566

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Citations (16)

Fossil associations from the middle and upper Eocene strata of the Pamplona Basin and surrounding areas (Navarre, western Pyrenees)

Journal of Iberian Geology (2016)

Humberto Astibia Aitor Payros Silvia Ortíz Javier Elorza Germán Álvarez-Pérez

Marl

Macrofossil

Ichnofacies

10.5209/rev_jige.2016.v42.n1.51601

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Citations (14)

Correction: High Diversity in Cretaceous Ichthyosaurs from Europe Prior to Their Extinction

PLoS ONE (2014)

Valentin Fischer Nathalie Bardet Myette Guiomar Pascal Godefroit

Background: Ichthyosaurs are reptiles that inhabited the marine realm during most of the Mesozoic.Their Cretaceous representatives have traditionally been considered as the last survivors of a group declining since the Jurassic.Recently, however, an unexpected diversity has been described in Upper Jurassic-Lower Cretaceous deposits, but is widely spread across time and space, giving small clues on the adaptive potential and ecosystem control of the last ichthyosaurs.The famous but little studied English Gault Formation and 'greensands' deposits (the Upper Greensand Formation and the Cambridge Greensand Member of the Lower Chalk Formation) offer an unprecedented opportunity to investigate this topic, containing thousands of ichthyosaur remains spanning the Early-Late Cretaceous boundary. Methodology/Principal Findings:To assess the diversity of the ichthyosaur assemblage from these sedimentary bodies, we recognized morphotypes within each type of bones.We grouped these morphotypes together, when possible, by using articulated specimens from the same formations and from new localities in the Vocontian Basin (France); a revised taxonomic scheme is proposed.We recognize the following taxa in the 'greensands': the platypterygiines 'Platypterygius' sp. and Sisteronia seeleyi gen.et sp.nov., indeterminate ophthalmosaurines and the rare incertae sedis Cetarthrosaurus walkeri.The taxonomic diversity of late Albian ichthyosaurs now matches that of older, well-known intervals such as the Toarcian or the Tithonian.Contrasting tooth shapes and wear patterns suggest that these ichthyosaurs colonized three distinct feeding guilds, despite the presence of numerous plesiosaur taxa.Conclusion/Significance: Western Europe was a diversity hot-spot for ichthyosaurs a few million years prior to their final extinction.By contrast, the low diversity in Australia and U.S.A. suggests strong geographical disparities in the diversity pattern of Albian-early Cenomanian ichthyosaurs.This provides a whole new context to investigate the extinction of these successful marine reptiles, at the end of the Cenomanian.

Extinction (optical mineralogy)

10.1371/annotation/3b639689-59a3-4f4a-9ea0-11e9be043382

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Citations (35)

Marine reptiles from the Late Cretaceous Phosphates of Jordan: palaeobiogeographical implications

Geodiversitas (2002)

Nathalie Bardet Xabier Pereda Suberbiola

Marine reptiles, including mosasaurs, plesiosaurs, turtles and crocodilians, from the Late Cretaceous (Maastrichtian) Phosphates of Ruseifa, Jordan, are reviewed on the basis of both historical collections and new discoveries. Mosasaurids are represented by mosasaurines (Globidens sp.), plioplatecarpines (Platecarpus ptychodon Arambourg, 1952, Prognathodon giganteus Dollo, 1904) and the basal Halisaurus Marsh, 1869. Indeterminate remains of elasmosaurid plesiosaurs, chelonioid turtles and crocodyliformes also occur. The marine reptile faunas from Jordan are reminiscent of those from the Late Cretaceous Phosphates of the Middle-East and of the southern margin of the Mediterranean Tethys in general.

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Citations (38)

Corrigendum to “Stable isotope composition and rare earth element content of vertebrate remains from the Late Cretaceous of northern Spain (Laño): did the environmental record survive?”

Palaeogeography Palaeoclimatology Palaeoecology (2003)

Christophe Lécuyer Christophe Bogey Jenny García P Granjean Jean‐Alix Barrat

Rare-earth element

Content (measure theory)

10.1016/s0031-0182(03)00454-1

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Citations (2)