Johan Yans

TL;DR: Rivecourt is reported to be the first direct equivalent to the Clarkforkian Land Mammal Age outside of North America, and a Late Paleocene age based on carbon isotope data, palynology and vertebrate occurrences such as the choristoderan Champsosaurus, the arctocyonid ArCTocyon, and the plesiadapid Plesiadapis tricuspidens is indicated.

TL;DR: In the early Cretaceous, successive tectonic phases and several sea level falls resulted in the emersion of the main part of western Europe and the development of thick "lateritic" weathering as discussed by the authors.

TL;DR: In this article, the authors studied the geochemical composition of the late Cretaceous-early Eocene Moroccan phosphate series in the Ouled Abdoun and Ganntour basins in Morocco to characterize paleoenvironmental conditions and to improve stratigraphy.

TL;DR: In this article, the authors focus on the organic matter content of the Vasterival section of the Cap d'Ailly area (Upper Normandy, France) in order to constrain the paleoenvironmental and paleohydrological changes that occurred at the Paleocene-Eocene boundary.

TL;DR: In this article, the authors provide constraints on the genesis and timing of cobalt deposits in the Katanga province of the Democratic Republic of Congo (DRC) and provide a multi-phase process, starting in the Late Miocene (10−5 Ma), when the metal-rich substratum was exposed to the action of meteoric fluids, due to major regional uplift.