A5062575335- Geology and Paleoclimatology Research
- Paleontology and Stratigraphy of Fossils
- Geological formations and processes
- Geological and Geophysical Studies Worldwide
- Pleistocene-Era Hominins and Archaeology
- Maritime and Coastal Archaeology
- Archaeology and ancient environmental studies
- Marine Biology and Ecology Research
- Geological and Geochemical Analysis
- Evolution and Paleontology Studies
- Marine and environmental studies
- Paleontology and Evolutionary Biology
- earthquake and tectonic studies
- Particle physics theoretical and experimental studies
- Aging, Elder Care, and Social Issues
- Archaeological and Geological Studies
- Health, Medicine and Society
- Diatoms and Algae Research
- Species Distribution and Climate Change
- French Urban and Social Studies
- Insect and Arachnid Ecology and Behavior
- Psychoanalysis and Psychopathology Research
- Geological Studies and Exploration
- Hydrology and Drought Analysis
- Identification and Quantification in Food
Centre National de la Recherche Scientifique
2016-2025
Université de Bretagne Occidentale
2016-2025
Ifremer
2022-2025
Institut Universitaire Européen de la Mer
2009-2025
Université Claude Bernard Lyon 1
2023
Lyon College
2023
Laboratoire de Géologie de Lyon : Terre, Planètes et Environnement
2023
Océanopolis
2016-2021
Université Européenne de Bretagne
2009-2021
Geo-Ocean
2017-2020
The Bay of Brest (BB) is a shallow estuarine environment in NW France. This semi-enclosed basin 180 km² subject to multiple hydrodynamic factors including the dual influence oceanic currents and fluvial discharges (Aulne Elorn main rivers) resulting complex hydro-climatic hydro-sedimentary processes. study investigates with palynological data (continental: pollen grains marine: dinoflagellate cysts) two kinds different materials: (i) modern surface sediments collected over whole BB as well...
Abstract Although much is known about the Ordovician tectonics of South European Variscides, aspects their geodynamic evolution and palaeogeographic reconstruction remain uncertain. In Sardinia, Variscan tectonic units include significant vestiges evolution, such as a fold system that affected only Cambrian–Lower successions, are cut by regional angular unconformity. A comparison stratigraphy structures successions below above Lower unconformity reinterpretation biostratigraphic data allow...
Early Palaeozoic sites with soft-tissue preservation are predominantly found in Cambrian rocks and tend to capture past tropical temperate ecosystems. In this study, we describe the diversity of Cabrières Biota, a newly discovered Ordovician Lagerstätte from Montagne Noire, southern France. The Biota showcases diverse polar assemblage both biomineralized soft-bodied organisms preserved iron oxides. Echinoderms extremely scarce, while sponges algae abundantly represented. Non-biomineralized...
Abstract The Fezouata Biota (Morocco) is a unique Early Ordovician fossil assemblage. discovery of this biota revolutionized our understanding Earth’s early animal diversifications—the Cambrian Explosion and the Radiation—by suggesting an evolutionary continuum between both events. Herein, we describe Taichoute, new locality from Shale. This extends temporal distribution preservation formation into upper Floian, while also expanding range depositional environments to more distal parts shelf....
Abstract Interactions and coordination between conspecific individuals have produced a remarkable variety of collective behaviours. This co-operation occurs in vertebrate invertebrate animals is well expressed the group flight birds, fish shoals highly organized activities social insects. How interact why they co-operate to constitute group-level patterns has been extensively studied extant through mechanistic, functional theoretical approaches. Although behaviour evolved natural selection...
The Bay of Brest (BB, NW France) is a semi-enclosed basin 180 km² subject to macro-tidal dynamics and the fluvial influences rivers Aulne Elorn, which combined drain watersheds 2600 km². This coastal environment natural climate oscillations overlaid on long-term landscape transformations inherited from post-glacial sea level rise increasing anthropogenic forcing since Neolithic (6.9 ka BP), especially Bronze Age (4.2 BP) onwards. BB therefore appears suitable for reconstruction interactions...
The multidisciplinary approach conducted on the coastal cores ANE-C3 and PADMé (48°38'54.5114"N; 4°10'21.3848"W; Kerallé watershed, NW Brittany, France) revealed paleoenvironmental trajectories under both relative sea level rise anthropogenic dynamics during Middle to Late Holocene, in research paper: "From a plain an anthropized fluvial valley (NW France): 7.3 kyr of evolution from sedimentological, palynological paleogenomic perspectives" [1]. This additional article presents all dataset...
Bifungites is an inverted π-shaped vertical burrow that was recovered from 52 stratigraphic levels in the Upper Ordovician (Katian) Kermeur Formation of Crozon Peninsula northwestern France. Its excellent quality and abundance various sedimentary facies allow re-evaluations ichnotaxonomy, taphonomy, ethology, environmental tolerance, evolutionary patterns this curious ichnotaxon. Analysis 68 specimens permitted identification five ichnospecies Brittany: cf. bisagitta , B. bisagittula...
The Bay of Brest (BB) is a macro-tidal estuarine environment that has been exposed to strong anthropogenic pressures over the last decades, especially after Second World War. It therefore considered as regional pilot site for addressing coastal ecosystem transformations since Industrial Revolution. We analysed 4 sediment cores collected in 2 different BB areas more or less marine hydrodynamic processes: i) Elorn sector (3 cores) and ii) Daoulas (1 core), inner BB, close mouth river, with aim...
Abstract This review illustrates the most important features of Ordovician successions Sardinian basement. We focus on stratigraphy and tectonic structures in units External Nappe zones Variscan The are characterized by unconformities related to events ascribed Sardic Sarrabese phases. different durations unconformity-related gaps (17 myr) (6 zones, recent work trilobite fossil content, occurrence a volcanic arc only Zone (Sarrabus Gerrei units) highlight significant discrepancies suggesting...
To date, Holocene palaeoecological signatures on the Northwestern coast of France have not been thoroughly investigated. In this study, environmental changes related to both climate processes and human disturbances were reconstructed over last 7000 cal. yr BP, based pollen chironomid assemblages from four coastal cores retrieved in Western Brittany (Porsmilin beach, NW France). Pollen records show an response millennial- centennial-scale changes. During mid-Holocene (until around 4200 BP),...
Abstract Understanding variations in body size is essential for deciphering the response of an organism to its surrounding environmental conditions and ecological adaptations. In modern environments, large marine animals are mostly found cold waters. However, numerous parameters can influence body-size other than temperatures, such as oxygenation, nutrient availability, predation or physical disturbances by storms. Here, we investigate trilobite Lower Ordovician Fezouata Shale deposited a...