Journal cover Journal topic
Journal of Micropalaeontology An open-access journal of The Micropalaeontological Society
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.179 IF 1.179
  • IF 5-year value: 1.107 IF 5-year
    1.107
  • CiteScore value: 2.6 CiteScore
    2.6
  • SNIP value: 0.601 SNIP 0.601
  • IPP value: 1.23 IPP 1.23
  • SJR value: 0.491 SJR 0.491
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 27 Scimago H
    index 27
  • h5-index value: 10 h5-index 10
Volume 27, issue 1
J. Micropalaeontol., 27, 5–12, 2008
https://doi.org/10.1144/jm.27.1.5
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 4.0 License.
J. Micropalaeontol., 27, 5–12, 2008
https://doi.org/10.1144/jm.27.1.5
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 May 2008

01 May 2008

Acarinina multicamerata n. sp. (Foraminifera): a new marker for the Paleocene–Eocene thermal maximum

Elisa Guasti1 and Robert P. Speijer2 Elisa Guasti and Robert P. Speijer
  • 1Department of Geoscience, Bremen University, PO Box 330 440, Bremen, Germany (Current address: Geobiology team – TNO, Princetonlaan, 6, 3584 CB Utrecht, The Netherlands, e-mail: )
  • 2Department of Geography and Geology, KU Leuven, Celestijnenlaan 200E, 3001 Leuven, Belgium (e-mail: )

Keywords: planktic foraminifera, Acarinina, excursion taxa, Paleocene, PETM

Abstract. During the Paleocene–Eocene thermal maximum (PETM), low to mid-latitude planktic foraminiferal assemblages were characterized by blooms of the surface-dwelling Acarinina. Among this group a new ‘excursion taxon’ is identified, Acarinina multicamerata n. sp. Previously, this taxon was lumped together with Acarinina sibaiyaensis El-Naggar. Considering that A. sibaiyaensis already occurred prior to the hyperthermal event, both in open ocean and ocean margin deposits, it is proposed that these taxa are differentiated in order to avoid taxonomic and biostratigraphic ambiguities. Acarinina multicamerata n. sp. occurred exclusively during the PETM, hence this taxon represents an excellent biostrati-graphic marker of the PETM, while its common occurrence in various marine settings makes it an excellent marker of Subzone P5b or its new equivalent zone E1.

Publications Copernicus
Download
Citation