Danian-Selandian sea-level change and biotic excursion on the southern Tethyan margin (Egypt)

  title={Danian-Selandian sea-level change and biotic excursion on the southern Tethyan margin (Egypt)},
  author={Robert P. Speijer},
  • R. Speijer
  • Published 2003
  • Environmental Science, Geography
A study on Danian to Selandian foraminifera (planktic/benthic ratios, benthic assemblages) in 23 sections on a N-S transect in eastern Egypt documents a transient biotic excursion associated with sea-level fluctuation at ∼60.5 Ma (Subbiochron P3a). In southern areas, the inner to middle neritic (30–70 m) Neoeponides duwi assemblage expanded into deeper parts of the shelf (∼70–250 m), temporarily replacing the Anomalinoides umboniferus and Angulogavelinella avnimelechi assemblages. In the deeper… 

Early Paleogene environmental turnover in the southern Tethys as recorded by foraminiferal and organic-walled dinoflagellate cysts assemblages

  • E. Guasti
  • Environmental Science, Geography
  • 2005
Integrated analysis of quantitative distribution patterns of organic walled dinoflagellate cysts (dinocysts) and benthic foraminifera from the Paleocene El Kef section (NW Tunisia) allows the

Micropalaeontological and isotopic analyses of the middle Palaeocene succession at Gebel Nezzi (Luxor, Egypt): Implications for eustatic changes

Gebel Nezzi (Upper Nile Valley, Egypt) was chosen to study the middle Palaeocene planktonic foraminiferans, nannoplankton contents, benthic foraminiferans, and stable isotopes to provide additional

Late Maastrichtian - early Paleocene sea level and climate changes in the Antioch Church Core (Alabama, Gulf of Mexico margin, USA): a multi-proxy approach

The Antioch Church core from central Alabama, spanning the Cretaceous-Paleogene (K-P) boundary, was investigated by a multi-proxy approach to study paleoenvironmental and sea level changes within the

Planktonic foraminiferal biostratigraphy and paleoenvironment of the Danian/Selandian in west-central Sinai (Egypt), implications from the Nukhul section

The foraminiferal analysis at the Danian/Selandian boundary of the Nukhul section (Egypt) enabled us to determine the biozones of Praemurica uncinata (P2); Morozovella angulata (P3a); Igorina albeari



Latest Paleocene benthic extinction event on the southern Tethyan shelf (Egypt): Foraminiferal stable isotopic (δ13C, δ18O) records

The dramatic global extinction of 35%–50% of benthic foraminifera species in the deep sea in the latest Paleocene and associated negative excursions in δ 13 C and δ 18 O may be related to spreading

Stratigraphy of late Palaeocene events in the Middle East: implications for low‐ to middle‐latitude successions and correlations

We have investigated the upper Palaeocene stratigraphical record in four sections in Egypt and one in Israel. The sections are arranged on a depth transect across the southern Tethyan margin. In all

Micro- and nannofossil biostratigraphy across the Danian/Selandian (Paleocene) Stage boundary at Gemmas Allé, Copenhagen, Denmark

Danian and Selandian (Paleocene) sediments are widely distributed in the subsurface of Denmark and are covered by a thick sequence of younger sediments in the Danish Basin. The Danian/Selandian Stage

Extinction and recovery patterns in benthic foraminiferal paleocommunities across the Cretaceous/Paleogene and Paleocene/Eocene boundaries

In this thesis Late Cretaceous to Early Paleogene (66-54 Ma) benthic foraminiferal distribution patterns in the southern Tethys (northern margin of Africa) are discussed. We focus in particular on

Paleoecology of the Foraminiferida of the Wills Point Formation (Midway Group) in Northeast Texas

ABSTRACT The last large-scale transgression of the Tertiary seas in northeast Texas began with the deposition of marine clays of the Wills Point Formation (upper Midway Group) over the carbonate

The Paleocene of central East Sinai, Egypt; "sequence stratigraphy" in monotonous hemipelagites

Tracking sequences in hemipelagic facies is complicated because of the rather monotonous appearance of the hemipelagic deposits, lack of subaerial exposure, and absence of typical sequence

Rapid diversification of planktonic foraminifera in the tropical Pacific (ODP Site 865) during the late Paleocene thermal maximum

The planktonic foraminiferal generaMorozovellaandAcarininarapidly (in ;10 k.y.) diversified during the late Paleocene thermal maximum (LPTM), giving rise to such morphotypes asM. allisonensis(new