- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Hydrocarbon exploration and reservoir analysis
- Marine Biology and Ecology Research
- Geological and Geophysical Studies
- Geological formations and processes
- Plant Diversity and Evolution
- Geological Studies and Exploration
- Geochemistry and Geologic Mapping
- Geochemistry and Elemental Analysis
- Geological and Geochemical Analysis
- Geological Formations and Processes Exploration
- Geological and Geophysical Studies Worldwide
- Methane Hydrates and Related Phenomena
- Plant and Fungal Species Descriptions
- Evolution and Paleontology Studies
- Marine and coastal plant biology
- Pleistocene-Era Hominins and Archaeology
- Paleontology and Evolutionary Biology
- Protist diversity and phylogeny
- Marine and environmental studies
- Parasite Biology and Host Interactions
- Marine Ecology and Invasive Species
- Fern and Epiphyte Biology
- Ancient and Medieval Archaeology Studies
Saudi Aramco (Saudi Arabia)
2013-2023
Saudi Aramco (United States)
2014-2019
Centre National de la Recherche Scientifique
2008-2018
Unité Évolution, Écologie et Paléontologie
2005-2018
Université de Lille
2007-2018
University of Cagliari
2011
Université de Bretagne Occidentale
2002-2004
Martin Luther University Halle-Wittenberg
2000-2002
The University of Queensland
1997
The Paleoproterozoic Era witnessed crucial steps in the evolution of Earth's surface environments following first appreciable rise free atmospheric oxygen concentrations ∼2.3 to 2.1 Ga ago, and concomitant shallow ocean oxygenation. While most sedimentary successions deposited during this time interval have experienced thermal overprinting from burial diagenesis metamorphism, ca. black shales Francevillian B Formation (FB2) cropping out southeastern Gabon not. contains centimeter-sized...
Abstract A database of all reported Ordovician–Silurian land plant megafossil and dispersed spore assemblages has been assembled. For each assemblage a list taxa prepared its location plotted on new palaeocontinental reconstructions. These data compilations are analysed with respect to palaeophytogeographical differentiation various patterns taxon diversity morphological disparity that emerged during the origin, adaptive radiation geographical spread plants. Our analyses include quantitative...
Soils are a crucial link between the atmosphere, biosphere, and geosphere. Any disturbance to health of soils will severely impact plants as well multitude organisms living in or on soils, such fungi, bacteria, insects. Catastrophic soil loss is thought have played pivotal role during mass-extinction events result major deforestation, but exact feedbacks remain elusive. Here, we assess end-Triassic event based proxy data obtained from four sediment sections recovered France, Germany,...
Veryhachium Deunff 1954, originally described from the Ordovician of western France, in one most frequently recorded acritarch genera. Over 250 species and subspecies, Cambrian to Neogene, have been attributed genus. This genus has a simple morphology; it displays triangular, rectangular, or polygonal central vesicle, with few, processes drawn out angles vesicle single plane, ad sometimes supplementary auxillary arising body. emended reised numerous times. The number valid is excessive: are...
ABSTRACT The lower section of the Silurian Qusaiba Member, Qalibah Formation, is characterized by regionally developed organic-rich shales that have sourced many large Paleozoic petroleum systems Saudi Arabia. In northern Arabia, these high–total organic carbon (TOC) horizons are being assessed for their unconventional shale-gas potential. initial phase exploration drilling, which resulted in a quadrupling number penetrations had dual purpose (1) assessing high-TOC as an resource play and...