The Global Stratotype Sections and Points for the bases of the Selandian (Middle Paleocene) and Thanetian (Upper Paleocene) stages at Zumaia, Spain

Schmitz, Birger; Pujalte, Victoriano; Molina, Eustoquio; Monechi, Simonetta; Orue‐Etxebarria, Xabier; Speijer, Robert P.; Alegret, Laia; Apellaniz, Estibaliz; Arenillas, Ignacio; Aubry, Marie‐Pierre; Baceta, Juan Ignacio; Berggren, William A.; Bernaola, Gilen; Caballero, Fernando; Clemmensen, Anne; Dinarès-Turell, J.; Dupuis, Christian; Heilmann‐Clausen, Claus; Orús, Asier Hilario; Knox, R. W. O’B.; Martín-Rubio, M.; Ortíz, Silvia; Payros, Aitor; Petrizzo, Maria Rose; Salis, Katharina von; Sprong, Jorinde; Steurbaut, Étienne; Thomsen, Erik

doi:10.18814/epiiugs/2011/v34i4/002

Cited by 103 publications

(74 citation statements)

References 83 publications

(146 reference statements)

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“…The GSSP‐defined Selandian/Thanetian boundary approximately occurs within the upper part of the nannofossil Zone NP6 above the base of the Mid‐Palaeocene Biotic Event (MPBE). The MPBE is characterized by important foraminiferal assemblage and calcareous nannofossil changes and is one of the best global correlation tool (Schmitz et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…The dominant species in the P4a Subzone are Morozovella acuta , M. aequa , M. velascoensis , M. lacerti , Acarinina mckannai , Subbotina velascoensis , S. compressaformis , and Parasubbotina variospira . Traditionally, the LO of G. pseudomenardii is approximately simultaneous within upper most part of the calcareous nannofossil Zone NP5 (e.g., Baceta, Pujalte, Serra‐Kiel, Robador, & Orue‐ Etxebarria, ; Berggren & Pearson, ; Dinarès‐Turell, Baceta, Bernaola, Orue‐Etxebarria, & Pujalte, ; Schmitz et al, ). On the other hand, Farouk and Faris () noted that small specimens (<125 μm) of G. pseudomenardii have been found within the topmost part of calcareous nannofossil Zone NP4 (NTp8B) slightly above the LO of Morozovella velascoensis , which is confirmed in the present study (Figures , and ).…”

Section: Biostratigraphymentioning

confidence: 99%

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

et al. 2018

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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 information into sea‐level changes. Two negative excursions are recorded that are associated with a sharp change in palaeoenvironmental conditions, representing significant global palaeoceanographic, palaeoclimatic, and eustatic events observed at other sites around the world. They are characterized by a drop in total foraminiferal abundance associated with a drop in the type, species richness, frequency, and diversity of foraminifers. The first negative excursion of −0.6‰ δ13C and −0.5 δ18O occurs during the Late Danian Event (LDE) almost near the upper part of the planktonic foraminiferal P3a Subzone and within the calcareous nannofossil NTp8A Subzone at the top of the lower third of Chron C26r. It is dominated by shallow‐water benthic foraminiferans of the Neoeponides duwi biofacies. The Danian‐Selandian boundary lies directly above the LDE within the top of the nannofossil Zone NP4, and within the planktonic foraminiferal Subzone P3b with significant increases in angular morozovellids associated with the earliest Cenozoic hyperthermals. The second negative excursion of −0.6‰ δ13C and −2.2 δ18O occurs near the top of the Dakhla Formation and is dominated by the benthic foraminiferal Bulimina farafraensis biofacies within the upper part of the calcareous nannofossil NTp9 Subzone and upper part of the planktonic foraminiferal P4a Subzone. These negative excursions associated with a well‐known falling sea level and are an important tool for regional correlation. Fluctuations in the foraminiferal population, benthic biofacies, δ 13C and δ18O isotopes and carbonate content reflect three fourth‐order transgressive–regressive (T–R) sequences response to eustatic changes in the Egyptian stable tectonic shelf.

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Section: Discussionmentioning

confidence: 99%

Section: Biostratigraphymentioning

confidence: 99%

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

et al. 2018

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“…The GSSP of Selandian Stage, the second stage in the Palaeocene series, was ratified in 2008 (Schmitz et al . ) at the Zumaia Section, in coincidence of the base of the Itzurun Formation. Two calcareous nannofossil biohorizons are in fact useful to approximate the base of the Selandian, the Base of Fasciculithus / Lithoptychius ulii (Aubry et al .…”

Section: Overview Of Cenozoic Calcareous Nannofossil Biostratigraphymentioning

confidence: 97%

“…Similarly to the Selandian GSSP, also the GSSP of the Thanetian Stage was ratified at the Zumaia Section (Schmitz et al . ). This boundary is positioned at the base of a clay interval within the Itzurun Formation and coincides with the base of Chron C26n (Dinarès‐Turell et al .…”

Section: Overview Of Cenozoic Calcareous Nannofossil Biostratigraphymentioning

confidence: 97%

Calcareous nannofossil biostratigraphy: historical background and application in Cenozoic chronostratigraphy

Agnini

Monechi

Raffi

2017

LET

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Calcareous nannofossils are considered one of the most powerful biostratigraphical tool in marine carbonate sediments especially in open ocean settings. Their origination goes at least as far back as the Triassic (ca. 220 Ma) when they first biomineralized and produced calcite skeletons. Since then, they have evolved rapidly showing widespread biogeographical distributions. Starting from the 1950s, changes in calcareous nannofossil assemblages have been used to date rocks and sediments and a fundamental step was achieved two decades later with the publication of the first comprehensive biostratigraphical schemes. Standardized quantitative counting methods, unambiguous taxonomy as well as highly resolved data sets provide high-quality biostratigraphical datums which, in turn, result in the precise positioning of calcareous nannofossil biohorizons and in the construction of reliable biostratigraphical frameworks. Here, we use recently published Cenozoic biozonations as a framework to present an overview of the calcareous nannofossil biohorizons which are used in chronostratigraphy to denote Cenozoic Global Standard Stratotype-section and Point

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“…Zumaia is the most complete and representative section of the early Palaeogene (hemi)‐pelagic succession of the Pyrenees, recognised as a key reference section for the Cretaceous‐Palaeogene and Palaeocene–Eocene boundaries (Pujalte et al. , 1998), and recently ratified as the Global Stratotype Boundary Sections and Points (GSSP) for the bases of the Selandian and Thanetian Stages (Schmitz et al. , in press).…”

Section: Introductionmentioning

confidence: 99%

The Palaeocene/Eocene boundary section at Zumaia (Basque‐Cantabric Basin) revisited: new insights from high‐resolution magnetic susceptibility and carbon isotope chemostratigraphy on organic matter (δ¹³C_org)

Storme

Devleeschouwer²,

Schnyder

et al. 2012

Terra Nova

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Terra Nova, 24, 310–317, 2012 Abstract The Zumaia section, the most complete and representative section of the early Palaeogene (hemi)‐pelagic succession of the Pyrenees, is widely acknowledged as a key reference for the Palaeocene–Eocene boundary. New high‐resolution δ13Corg of the Zumaia section (−23.8 to −28.8‰) confirms the position of the Carbon Isotope Excursion and enhances the distinction between the different steps of the CIE/PETM event. According to new magnetic susceptibility data and detailed cycle counting, the entire duration of the CIE/PETM in Zumaia is estimated in ∼168 ± 16 ka. Moreover, the investigation of palynofacies and low‐field magnetic susceptibility reveal significant detrital influx during the interval. Several magnetic susceptibility phases and trends are recognised and are interpreted in terms of sea‐level fluctuations before, during and after the PETM. Coupled with results from other sections, our data reveal the presence of an unconformity followed by an eustatic sea‐level rise (TST) in the latest Palaeocene.

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The Global Stratotype Sections and Points for the bases of the Selandian (Middle Paleocene) and Thanetian (Upper Paleocene) stages at Zumaia, Spain

Cited by 103 publications

References 83 publications

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

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

Calcareous nannofossil biostratigraphy: historical background and application in Cenozoic chronostratigraphy

The Palaeocene/Eocene boundary section at Zumaia (Basque‐Cantabric Basin) revisited: new insights from high‐resolution magnetic susceptibility and carbon isotope chemostratigraphy on organic matter (δ¹³C_org)

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The Global Stratotype Sections and Points for the bases of the Selandian (Middle Paleocene) and Thanetian (Upper Paleocene) stages at Zumaia, Spain

Cited by 103 publications

References 83 publications

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

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

Calcareous nannofossil biostratigraphy: historical background and application in Cenozoic chronostratigraphy

The Palaeocene/Eocene boundary section at Zumaia (Basque‐Cantabric Basin) revisited: new insights from high‐resolution magnetic susceptibility and carbon isotope chemostratigraphy on organic matter (δ13Corg)

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The Palaeocene/Eocene boundary section at Zumaia (Basque‐Cantabric Basin) revisited: new insights from high‐resolution magnetic susceptibility and carbon isotope chemostratigraphy on organic matter (δ¹³C_org)