The Cretaceous/Paleogene (K/Pg) boundary is marked by one of the largest mass extinctions in Earth’s history, with geological evidence for this event being expressed hundreds locations worldwide. An extensively studied section located near El Kef, northwestern Tunisia, characterized classic iridium-rich K/Pg layer, abundant and well-preserved microfossils, apparently continuous sedimentation th...

The 100 m thick stratigraphic section exposed at Dinosaur Provincial Park (DPP, southern Alberta) contains bentonites that have been used for more than 30 years to date DPP's rocks and fossils using the K-Ar decay scheme. Limited reproducibility among different vintages of 40Ar/39Ar ages inhibited development a high resolution chronostratigraphy. Here we employ further test recently completed C...

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, ...

Abstract A combined micropalaeontological, taphonomical and sedimentological study was carried out in the non-marine Barremian of Maestrat Basin (E Iberian Chain) to elucidate palaeoecology charophytes. Understanding fossil charophytes is prime importance for accurate application charophyte biozonations, since most species used as biostratigraphic markers and/or biozone index are restricted fac...

Clinoforms and clinothems are important common architectural elements in the sedimentary record of many basins worldwide. The influence that they exert on chronostratigraphic interpretations, however, is often underestimated. This especially true non-marine basins, such as Central European to Asian Neogene Paratethyan where division correlation usually based fossils environmentally sensitive mo...

The Paleocene benthic foraminiferal zonation of the Umm Er Rhadhuma Formation from borehole (K.H 12/7), South Anah City (Western Iraq), has been re-studied and re-analyzed precisely based on large foraminifera (LBF). They are represented by two biozone Rotorbinella hensoni Partial Range Zone, recorded Lower middle parts Lockhartia praehaimei Zone determined Uppermost this unit, dated to be Sela...