Late Maastrichtian to Danian dinoflagellate cyst and calcareous nannofossil biostratigraphy was analyzed at the Sur Río Chico borehole, Austral Basin, Argentina. Two stratigraphical intervals from 965 1003 m below ground surface of drilled section were defined. The co-occurrence Manumiella bertodano, M. seelandica conorata in 990–1000 1000–1003 mbgs interval, associated with top Neprolithus fre...

New coleoid cephalopods, assignable to the order Sepiida, are recorded from the Selandian/Thanetian boundary interval (Middle to Upper Paleocene transition, c. 59.2 Ma) along the southeastern margin (Toshka Lakes) of the Western Desert in Egypt. The two genera recognised, Aegyptosaepia n. gen. and ?Anomalosaepia Weaver and Ciampaglio, are placed in the families Belosaepiidae and ?Anomalosaepiid...

After the Cretaceous/Paleogene boundary (KPB) catastrophic mass extinction event, an explosive evolutionary radiation of planktic foraminifera took place in consequence prompt occupation empty niches. The rapid evolution new species makes it possible to establish high-resolution biozonations lower Danian. We propose two biostratigraphic scales for low-to-middle latitudes spanning first million ...

Consistent trends towards decreasing body size in the aftermath of mass extinctions--Lilliput effects--imply a predictable response among unitary animals to these events. The occurrence of Lilliput effects has yet to be widely tested in colonial organisms, which are of particular interest as size change may potentially occur at the two hierarchical levels of the colony and the individual zooids...

The Campanian–Paleocene Jaworzynka Formation, a part of the Magura Nappe succession in Polish Outer Carpathians, is described terms its detailed litho- and biostratigraphy. formation stretches along marginal Siary Unit, from stratotype area Silesian Beskid Mts up to Mszana Dolna Wyspowy Mts. Its equivalent Moravskoslezske Beskydy the Czech Republic Solaň Formation. In area, displays complex str...

The variations in assemblages of calcareous nannofossils are tracked the Dakhla and Tarawan Formations exposed at Gebel Nezzazat (central Sinai, Egypt). Five nannofossil biozones, namely NP2/3, NP4, NP5, NP6, NP7/8 identified. A distinct marker bed related to Latest Danian Event (LDE) occurs within Fm. earliest representative fasciculiths, Lithoptychius schmitzii, first just below LDE is follow...