Now showing items 1-5 of 5

  • Gradstein, Felix M; Agterberg, F.P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract Methods to determine the ages of period and stage boundaries of the geologic time scale (GTS) have a long history and continue to be steadily improved. Stage boundary age estimates are now accompanied by error ...
  • Gradstein, Felix M; Waskowska, Anna; Kopaevich, Ludmila; Watkins, David K; Friis, Henrik; Perez Panera, J (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    A Berriasian age planktonic foraminifera assemblage from a section near the village of Krasnoselivka in the Tonas River Basin, Crimea contains Favusella hoterivica (Subbotina), ?Favusella sp., Conoglobigerina gulekhensis ...
  • Zalasiewicz, Jan; Waters, Colin N.; Wolfe, Alexander P.; Barnosky, Anthony D.; Cearreta, Alejandro; Edgeworth, Matt; Ellis, Erle C.; Fairchild, Ian J.; Gradstein, Felix M; Grinevald, Jacques; Haff, Peter K.; Head, Martin J; do Sul, Juliana A. Ivar; Jeandel, Catherine; Leinfelder, Reinhold; McNeill, John R.; Oreskes, Naomi; Poirier, Clement; Revkin, Andrew; Richter, Daniel DeB.; Steffen, Will; Summerhayes, Colin; Syvitski, James P.; Vidas, Davor; Wagreich, Michael; Wing, Scott L.; Williams, Mark (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    A range of published arguments against formalizing the Anthropocene as a geological time unit have variously suggested that it is a misleading term of non-stratigraphic origin and usage, is based on insignificant temporal ...
  • Gradstein, Felix M; Waskowska, Anna (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract Globuligerina glinskikhae nov. sp. Gradstein & Waskowska and Globuligerina waskowskae nov. sp. Gradstein are new species of Jurassic planktonic foraminifera from the Middle Jurassic of Dagestan and Poland. ...
  • Gradstein, Felix M; Waskowska, Anna; Glinskikh, Larisa (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We provide a biochronology of Jurassic planktonic foramininfera, using first order linkage to ammonite and nannofossil stratigraphy and geochronology. This enigmatic and understudied group of microfossils occurred from ...