A5019110605- Marine and coastal ecosystems
- Geology and Paleoclimatology Research
- Protist diversity and phylogeny
- Microbial Community Ecology and Physiology
- Marine Biology and Ecology Research
- Marine Toxins and Detection Methods
- Paleontology and Stratigraphy of Fossils
- Marine and environmental studies
- Methane Hydrates and Related Phenomena
- Isotope Analysis in Ecology
- Geological formations and processes
- Marine and coastal plant biology
- Evolution and Paleontology Studies
- Diatoms and Algae Research
- Environmental DNA in Biodiversity Studies
- Coral and Marine Ecosystems Studies
- Marine Invertebrate Physiology and Ecology
- Cephalopods and Marine Biology
- Archaeological and Geological Studies
- Paleontology and Evolutionary Biology
- Algal biology and biofuel production
- Pleistocene-Era Hominins and Archaeology
- Hydrocarbon exploration and reservoir analysis
- Soil and Environmental Studies
- Geological Studies and Exploration
Ifremer
2016-2025
Université de Bretagne Occidentale
2016-2025
Ghent University
2009-2018
Acritarchs are organic-walled microfossils dominating the phytoplankton in Paleozoic seas. Current classification subdivides acritarchs into subgroups based on outline of main vesicle. Among them netromorphs cover fusiform morphotypes showing peak diversity during middle Paleozoic. More than three hundred species and subspecies were reported literature, many which probably synonyms or ecophenotypes. We review emend definition netromorphs, restricting to homopolar forms reassigning related...
Dual nomenclature in dinoflagellates is supported under the current nomenclatural code for algae, fungi and plants allows a fossil-defined (usually cyst) species to bear name other than that of its equivalent non-fossil species, as established example by incubation experiments. Two names can then apply same cyst morphotype, reflecting separate but overlapping concepts criteria used fossil- taxa. Fossil-species are normally logically assigned fossil-genera genera, practice facilitates dual...
Dinoflagellates constitute a large proportion of the planktonic biomass from marine to freshwater environments. Some species produce preservable organic-walled resting cyst (dinocyst) during sexual phase their life cycle that is an important link between organisms, environment in which parent motile theca grew, and sedimentary record. Despite abundance widespread usage as proxy indicators for environmental conditions, there lack knowledge regarding dinocyst wall chemical composition. It...
reticulatum, from surface sediments of the Baltic-
Abstract Process length variation of cysts the dinoflagellate Protoceratium reticulatum (Claparède et Lachmann) Bütschli in surface sediments from North Pacific was investigated. The average process showed a significant inverse relation to annual seawater density: σ t = −0.8674 × + 1029.3 ( R 2 0.84), with standard error 0.78 kg m −3 . A sediment trap study Effingham Inlet British Columbia revealed same relationship between and local density variations. In Baltic–Skagerrak region, related...
The cyst-defined extant Spiniferites elongatus Reid Citation1974 and membranaceus (Rossignol Citation1964) Sarjeant Citation1970 are environmentally significant fossil-species of the Quaternary, former often dominating polar subpolar assemblages. Following cyst incubation experiments establishment cultures, these species were emended to incorporate information on their motile stages, transferred non-fossil genus Gonyaulax Diesing Citation1866, as elongata (Reid Citation1974) Ellegaard et al....
Abstract A high-resolution palynological analysis and a detailed palaeomagnetic study of marine sequence recovered during IODP Expedition Leg 307 in the Porcupine Basin southwest Ireland provide new insights into regional depositional history palaeoenvironmental evolution Early Neogene times. The Hole 1318B studied was drilled on upper slope continental margin water depth 409 m, upslope from province carbonate mounds (the Belgica mound province). diverse well-preserved dinoflagellate cyst...