EnviroMolSed

Reconstructing Plio-Pleistocene hydrosystems in the Omo-Turkana Basin with integrative studies of sedimentology and freshwater mollusks



Résumé
Freshwater mollusks are common in lakes, rivers and wetlands and, hence, they record living conditions in continental hydrosystems. They leave abundant fossil remains in the deposits of various basins in the East African Rift, but despite their unique potential to reconstruct paleoenvironments, including those in which hominids evolved, they remain underutilized compared to terrestrial vertebrates. In this trans-disciplinary PhD project we will focus on the sedimentology, taphonomy and paleontology of late Cenozoic mollusk assemblages of the Omo-Turkana Basin to reconstruct hydrosystems of the basin in space and time. Although the basin harbored various paleolakes, it is unclear whether changes in aquatic communities coincide with major lacustrine transgressions and regressions, and how environmental change affected biotic communities. We propose to study freshwater mollusk communities over time from stratigraphically constrained shell beds together with depositional facies and basin-scale sequence analysis.

Mots-clés
East-African Rift System, paleobiodiversity, paleolakes, facies analysis, depositional environments

Partenaires du projet

INEE
VAN BOCXLAER Bert
Evo-Eco-Paléo (UMR8198) Lille France
INSU
NUTZ Alexis
CEREGE (UM 34/UMR 7330) Aix-en-Provence France
INSU
SCHUSTER Mathieu
ITES (UMR 7063) Strasbourg France
Credit: Bert Van Bocxlaer
Crédit photo : Credit: Bert Van Bocxlaer

Pour plus d’informations https://eep.univ-lille.fr/