Pre-mass extinction decline of latest Permian ammonoids

Journal article
(Original article)

Publication Details

Author(s): Kießling W, Schobben M, Ghaderi A, Hairapetian V, Leda L, Korn D
Journal: Geology
Publication year: 2018
Volume: 46
Journal issue: 3
Pages range: 283-286
ISSN: 0091-7613


The devastating end-Permian mass extinction is widely considered to have been caused by large-scale and rapid greenhouse gas release by Siberian magmatism. Although the proximate extinction mechanisms are disputed, there is widespread agreement that a major extinction pulse occurred immediately below the biostratigraphically defined Permian-Triassic boundary. Our statistical analyses of stratigraphic confidence intervals do not comply with a single end-Permian extinction pulse of ammonoids in Iran. High turnover rates and extinction pulses are observed over the last 700 k.y. of the Permian period in two widely separated sections representative of a larger area. Analyses of body sizes and morphological complexity support a gradual decline over the same interval. Similar pre-mass extinction declines and disturbances of the carbon cycle have sometimes been reported from other regions, suggesting a widespread, but often overlooked, environmental deterioration at a global scale, well before the traditional main extinction pulse.

FAU Authors / FAU Editors

Kießling, Wolfgang Prof. Dr.
Lehrstuhl für Paläoumwelt

External institutions with authors

Ferdowsi University of Mashhad
Islamic Azad University (IAU) / دانشگاه آزاد اسلامی‎‎
Leibniz Institute for Evolution and Biodiversity Science / Leibniz-Institut für Evolutions- und Biodiversitätsforschung

Research Fields

Climate and Resources
Research focus area of a faculty: Naturwissenschaftliche Fakultät

How to cite

Kießling, W., Schobben, M., Ghaderi, A., Hairapetian, V., Leda, L., & Korn, D. (2018). Pre-mass extinction decline of latest Permian ammonoids. Geology, 46(3), 283-286.

Kießling, Wolfgang, et al. "Pre-mass extinction decline of latest Permian ammonoids." Geology 46.3 (2018): 283-286.


Last updated on 2019-03-01 at 12:10