A5065989605- Marine Biology and Ecology Research
- Echinoderm biology and ecology
- French Urban and Social Studies
- Paleontology and Stratigraphy of Fossils
- Balkans: History, Politics, Society
- Multiculturalism, Politics, Migration, Gender
- Ocean Acidification Effects and Responses
- Marine Bivalve and Aquaculture Studies
- Geology and Paleoclimatology Research
- Energetic Materials and Combustion
- Agriculture and Rural Development Research
- Coral and Marine Ecosystems Studies
- Social Sciences and Governance
- China's Global Influence and Migration
- Banking stability, regulation, efficiency
- Archaeology and Historical Studies
- Combustion and Detonation Processes
- Political and Social Issues
- Post-Communist Economic and Political Transition
- Silicon and Solar Cell Technologies
- Isotope Analysis in Ecology
- Classical Antiquity Studies
- Middle East and Rwanda Conflicts
- Thermal and Kinetic Analysis
- Marine and coastal plant biology
Muséum national d'Histoire naturelle
2017-2025
Institut de Systématique, Évolution, Biodiversité
2013-2025
Délégation Paris 6
2024-2025
Écologie, Systématique et Évolution
2025
Centre National de la Recherche Scientifique
1997-2023
École Pratique des Hautes Études
2017-2023
Sorbonne Université
2015-2021
Université de Reims Champagne-Ardenne
1990-2020
Université Sorbonne Paris Nord
2006-2020
Université Paris Cité
1974-2019
There is growing interest in mining polymetallic nodules from the abyssal Clarion-Clipperton Zone (CCZ) tropical Pacific Ocean. Despite being focus of environmental studies for decades, benthic megafauna CCZ remain poorly known. In order to predict and manage impacts CCZ, baseline knowledge essential. The ABYSSLINE Project has conducted biological surveys UK Seabed Resources Ltd polymetallic-nodule exploration contract area (UK-1). Prior these research cruises 2013 2015, no had been done...
The term pseudobioherm is used for fossiliferous calcareous bodies with a bioherm-like shape but neither built by organisms, nor bulging at the sediment/water interface. Jurassic pseudobioherms of southeastern France are among first carbonate whose relation to deep-sea seeps was recognized. They precipitation in sediment and they contain mainly infaunal non-building animals (chiefly bivalves). related active synsedimentary faults that allowed migration fluids sea floor. Chemosynthetic life...
The genus Conocrinus d’Orbigny, 1850 (Crinoidea, Bourgueticrinina) was established on the basis of two aboral cups that had previously been described as Bourgueticrinus thorenti d’Archiac, 1846. One these (now considered lost) came from “Rocher du Goulet” at base Biarritz section (Bartonian, Côte des Basques, southwest France). D’Archiac figured only second cup; this belongs to d’Orbigny Collection and is still housed in palaeontological collection Muséum national d’Histoire naturelle...
Abstract Cathodoluminescence (CL) examination of Recent biogenic carbonates shows that they are often luminescent regardless their mineralogical composition (calcite v. aragonite), habitat (marine fresh water), way life (sessile vagile) or environment (hyper- hyposaline water). Thus, the presence luminescence in particles is not a reliable indicator diagenetic alteration as some authors have suggested. In addition, CL can reveal variations mineralogy shell material (e.g. regenerated calcitic...
The deep-sea crinoid fauna of the Indian Ocean is still only partially known and its relationships with Atlantic W Pacific faunas remain questionable. Isolated ossicles, more or less biocorroded, six species belonging to five families stalked crinoids one comatulids were found in a sediment late Pliocene early Pleistocene age collected at depth 1460 m on western Rodrigues Ridge. material described contains three including two new Rhizocrinidae. Paraconocrinus, common genus Eocene, was...
Most fossil feather stars are known only from the centrodorsal often connected to radial circlet. This is case for Discometra rhodanica (Fontannes, 1877), type species of genus Discometra, collected Late Burdigalian Miocene Rhône-Provence basin (southeastern France). The quarries operating in this area have exposed layers on northern flank Lubéron anticline near Ménerbes (basin Apt, Vaucluse, southeastern These contain exceptionally well-preserved echinoderms, among which three specimens a...
Detailed studies of the middle Ilerdian (lower Ypresian) blue marls Gulf Languedoc (Corbières, Aude, France), belonging to north Pyrenean foreland basin, have revealed a more abundant and diverse crinoid fauna than previously documented from Lower Eocene. Here we describe five species stalked crinoids in family Rhizocrinidae (Cherbonniericrinus requiensis n. sp., ?Democrinus elongatus, Globulocrinus amphoraformis gen., Pseudoconocrinus doncieuxi P. lavadensis sp.), one barnacle-like...
Using recent samplings and specimens from ancient collections, 14 sites five species of stalked crinoids have been listed in the Miocene southern Rhodanian basin (southeastern France). Three two genera are new for science: Papacrinus avignonensis n. gen., n sp. (Balanocrininae), Paraconocrinus rhodanicus (Rhizocrinidae) Gastecrinus vinealis (Incertae sedis). The identification among Mediterranean fauna genus Metacrinus, now confined to Indo-Pacific province, was confirmed by discovery...
The main characters of the stalked crinoids family Pentacrinitidae attributed to genus Teliocrinus are re-evaluated from a quantitative study phenotype variation, new observations on arm and stalk articulations, observation ontogenetic trends. All specimens collected in northern Indian Ocean belong same species, i.e. springeri (Clark, 1909). However, two phenotypes living at different depths remain valid as subspecies: 1909) liliaceus shares several trends with Endoxocrinus, especially...
Shells of the bivalves Calyptogena magnifica and Bathymodiolus thermophilus that live by hydrothermal vents East Pacific Rise, record variations in vent activity. Their Sr Mg contents reflect those surrounding waters. carbon isotopic composition progressively decreases throughout clam growth (about 1‰); it is significantly higher (+3.5‰) than shallow water species (±2‰); there a dependence between mean shells soft parts
Abstract The energy transfer mechanism from the electric spark to reactive solid sample in powder form has been determined. Only a small portion of is heated explosion critical temperature through resistive heating by current. In fact, hot spots develop at thinnest part solid, i.e. intergrain contact points. We studied evolution thermal diffusivity and sensitivity as function powdered HMX granulometry. It allowed us specify respective importance grain size shape this evolution.
A revision of the stalked crinoid species attributed to genus Endoxocrinus A.H. Clark, 1908 (Diplocrininae, Pentacrinitidae, Crinoidea, Echinodermata) is conducted using studies on phenotype variation and its relation with environment. Specimens collected via submersible at five sites in Bahamas exhibit distinct phenotypes that correlate different apparent ecological niches serve as references for interpreting specimens dredged Atlantic Pacific Oceans where detailed information their benthic...