A 27.5-My underlying periodicity detected in extinction episodes of non-marine tetrapods

  title={A 27.5-My underlying periodicity detected in extinction episodes of non-marine tetrapods},
  author={Michael R. Rampino and Ken Caldeira and Yuhong Zhu},
  journal={Historical Biology},
  pages={3084 - 3090}
ABSTRACT Non-marine tetrapods (amphibians, reptiles, birds and mammals) have apparently experienced at least 10 distinct episodes of intensified extinctions over the past 300 My. Eight of these ten non-marine extinction events are concurrent with known marine-extinction episodes, which previously yielded evidence for an underlying period of ~26.4 to 27.3 My. We performed circular spectral analysis and Fourier transform analysis of the ages of the ten recognised tetrapod-extinction events, and… 

Non-marine tetrapod extinctions solve extinction periodicity mystery

  • Mensur Omerbashich
  • Geography
    Historical Biology
  • 2021
ABSTRACT Based on their compiled data set of ten extinction episodes (four of which had no known extinction rates) published earlier in this journal, Rampino and co-authors claimed a 27.5-My period

Relationship between extinction magnitude and climate change during major marine/terrestrial animal crises

  • K. Kaiho
  • Environmental Science, Geography
  • 2022
Abstract. Major mass extinctions in the Phanerozoic Eon occurred during abrupt global climate changes accompanied by environmental destruction driven by large volcanic eruptions and projectile

Sedimentology of the continental end‐Permian extinction event in the Sydney Basin, eastern Australia

Upper Permian to Lower Triassic coastal plain successions of the Sydney Basin in eastern Australia have been investigated in outcrop and continuous drillcores. The purpose of the investigation is to



Mass extinction among non-marine tetrapods

  • M. Benton
  • Environmental Science, Geography
  • 1985
It is shown that family diversity rose with time, and in particular from the Cretaceous to the present day, and the present evidence does not support the view that mass extinctions are statistically distinguishable from background extinctions.

Analysis of periodicity of extinction using the 2012 geological timescale

Analysis of two independent data sets with increased taxonomic resolution using the revised 2012 timescale reveals that an extinction periodicity first detected by Raup and Sepkoski (1984) for only the post-Paleozoic actually runs through the entire Phanerozoic.

End-Triassic nonmarine biotic events

Periodicity of extinctions in the geologic past.

  • D. RaupJ. Sepkoski
  • Geography, Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 1984
The temporal distribution of the major extinctions over the past 250 million years has been investigated statistically using various forms of time series analysis and contains 12 extinction events that show a statistically significant periodicity.

Dynamics of origination and extinction in the marine fossil record

  • J. Alroy
  • Environmental Science, Geography
    Proceedings of the National Academy of Sciences
  • 2008
The discipline-wide effort to database the fossil record at the occurrence level has made it possible to estimate marine invertebrate extinction and origination rates with much greater accuracy. The

More than one event in the late Triassic mass extinction

  • M. Benton
  • Geography, Environmental Science
  • 1986
The recent hypothesis that mass extinctions are discrete phenomena that have occurred with great regularity during the history of life1,2 is testable in several ways. Two essential elements of the

Major episodes of geologic change: correlations, time structure and possible causes

Relationship between impact-crater size and severity of related extinction episodes

Astronomical age constraints and extinction mechanisms of the Late Triassic Carnian crisis

This work provides the first evidence from a terrestrial stratigraphic succession of at least five significant negative C-isotope excursions (CIE)’s through the CPE recorded in both bulk organic carbon and compound specific plant leaf waxes.

When and how did the terrestrial mid-Permian mass extinction occur? Evidence from the tetrapod record of the Karoo Basin, South Africa

An extensive compilation of tetrapod-stratigraphic data analysed by the constrained optimization (CONOP) algorithm that reveals a significant extinction event among tetrapods within the lower Beaufort Group of the Karoo Basin, South Africa, in the latest Capitanian and supports the existence of a mid-Permian mass extinction event on land near the end of the Guadalupian.