Abstract The Mississippian (Tournaisian–Visean) of the Jbel Asdaf area in Tisdafine Basin (Eastern Anti-Atlas, Morocco) has been, for first time, subject a palynological study. This work aims to describe lithological and paleontological composition Aït Yalla Tinerhir Formations, then refine age, reconstruct paleoenvironment assess thermal maturity organic matter. studied section is subdivided, ...

The degree to which emergent surfaces are correlated in late Asbian carbonate successions Britain and Ireland is assessed by the integration of detailed biostratigraphy diversity trends foraminifers. Data related Trowbarrow Quarry section northern England, provides a reference for upper because its rich assemblages high sampling density. Diversity shown be non-random, possess cyclic behaviour, ...