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Cited by 444

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Periodic Extinction of Families and Genera

Raup, David M., Sepkoski, J. John·1986·Science

Abstract

Eight major episodes of biological extinction of marine families over the past 250 million years stand significantly above local background ( P < 0.05). These events are more pronounced when analyzed at the level of genus, and generic data exhibit additional apparent extinction events in the Aptian (Cretaceous) and Pliocene (Tertiary) Stages. Time-series analysis of these records strongly suggests a 26-million-year periodicity. This conclusion is robust even when adjusted for simultaneous testing of many trial periods. When the time series is limited to the four best-dated events (Cenomanian, Maestrichtian, upper Eocene, and middle Miocene), the hypothesis of randomness is also rejected for the 26-million-year period ( P < 0.0002).

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Metadata

Authors
Raup, D. M., & Sepkoski, J. J.
Venue
Science
Published
1986-02-21
Volume
231
Issue
4740
Pages
833-836
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2075334642
Cited by
444
References
0
FWCI
37.20
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Periodic Extinction of Families and Genera. https://app.cochat.ai/papers/10.1126/science.11542060
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Raup, D. M., & Sepkoski, J. J. (1986). Periodic Extinction of Families and Genera. Science. https://doi.org/10.1126/science.11542060

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