A revised tropical to subtropical paleogene planktonic foraminiferal zonation
MetadataShow full item record
New biostratigraphic investigations on deep sea cores and outcrop sections have revealed several shortcomings in currently used tropical to subtropical Eocene planktonic foraminiferal zonal schemes in the form of: 1) modified taxonomic concepts, 2) modified/different ranges of taxa, and 3) improved calibrations with magnetostratigraphy. This new information provides us with an opportunity to make some necessary improvements to existing Eocene biostratigraphic schemes. At the same time, we provide an alphanumeric notation for Paleogene zones using the prefix ‘P’ (for Paleocene), ‘E’ (for Eocene) and ‘O’ (for Oligocene) to achieve consistency with recent short-hand notation for other Cenozoic zones (Miocene [’M’], Pliocene [PL] and Pleistocene [PT]). Sixteen Eocene (E) zones are introduced (or nomenclaturally emended) to replace the 13 zones and subzones of Berggren and others (1995). This new zonation serves as a template for the taxonomic and phylogenetic studies in the forthcoming Atlas of Eocene Planktonic Foraminifera (Pearson and others, in press). The 10 zones and subzones of the Paleocene (Berggren and others, 1995) are retained and renamed and/or emended to reflect improved taxonomy and an updated chronologic calibration to the Global Polarity Time Scale (GPTS) (Berggren and others, 2000). The Paleocene/Eocene boundary is correlated with the lowest occurrence (LO) of Acarinina sibaiyaensis (base of Zone E1), at the top of the truncated and redefined (former) Zone P5. The five-fold zonation of the Oligocene (Berggren and others, 1995) is modified to a six-fold zonation with the elevation of (former) Subzones P21a and P21b to zonal status. The Oligocene (O) zonal components are renamed and/or nomenclaturally emended.
Author Posting. © Cushman Foundation for Foraminiferal Research, 2005. This article is posted here by permission of Cushman Foundation for Foraminiferal Research for personal use, not for redistribution. The definitive version was published in Journal of Foraminiferal Research 35 (2005): 279-298, doi:10.2113/35.4.279.
Suggested CitationArticle: Berggren, William A., Pearson, Paul N., "A revised tropical to subtropical paleogene planktonic foraminiferal zonation", Journal of Foraminiferal Research 35 (2005): 279-298, DOI:10.2113/35.4.279, https://hdl.handle.net/1912/4717
Showing items related by title, author, creator and subject.
Wit, Johannes C.; de Nooijer, L. J.; Wolthers, M.; Reichart, Gert-Jan (Copernicus Publications on behalf of the European Geosciences Union, 2013-10-09)Salinity and temperature determine seawater density, and differences in both thereby control global thermohaline circulation. Whereas numerous proxies have been calibrated and applied to reconstruct temperature, a direct ...
Corrigendum to "A culture-based calibration of benthic foraminiferal paleotemperature proxies: δ18O and Mg/Ca results" published in Biogeosciences, 7, 1335–1347, 2010 Filipsson, Helena L.; Bernhard, Joan M.; Lincoln, Sara; McCorkle, Daniel C. (Copernicus Publications on behalf of the European Geosciences Union, 2011-06-10)
A culture-based calibration of benthic foraminiferal paleotemperature proxies : δ18O and Mg/Ca results Filipsson, Helena L.; Bernhard, Joan M.; Lincoln, Sara; McCorkle, Daniel C. (Copernicus Publications on behalf of the European Geosciences Union, 2010-04-29)Benthic foraminifera were cultured for five months at four temperatures (4, 7, 14 and 21 °C) to establish the temperature dependence of foraminiferal calcite δ18O and Mg/Ca. Two Bulimina species (B. aculeata and B. marginata) ...