@Edaphosaurus Not marketing at all. These five events were identified as significantly different from background extinction rates back in the day by Raup and Sepkoski. It was published @ScienceMagazine https://t.co/lKhLIESQTs https://t.co/g9zcWnmHMm
Mass extinctions in the marine fossil record.
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Oct 2022 – Sep 2025Where it's discussed
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What people are saying
This collection of discussions demonstrates high engagement and interest, with phrases like 'significantly different from background extinction' and references to the original research by Raup and Sepkoski. The tone varies from appreciative remarks about learning from history to critical comments about the fossil record and scientific definitions, which reflect a nuanced understanding and appreciation of the significance of the research.
Most posts acknowledge and relate positively to the scientific publication, reflecting a general agreement or appreciation of its significance.
Discussions indicate high interest, with posts referencing multiple mass extinctions, methods, and historical context, showing active engagement with the topic.
Several posts go beyond simple agreement, discussing concepts like the nature of mass extinctions and related scientific studies, indicating moderate engagement.
While some posts highlight the importance of understanding extinction events, few suggest that this discussion is transforming public perception or policy, hence a moderate impact score.
Abstract in brief
- Four major mass extinctions in marine life occurred during the late Ordovician, Permian, Triassic, and Cretaceous periods, significantly higher than normal background extinction rates.
- A fifth extinction in the Devonian is notable but not statistically significant based on the fossil data.
- Overall, background extinction rates have decreased since the Cambrian period, likely because species have become better at surviving over time.]
Top posts
Most liked on X and BlueskyEarth's atmosphere. Icarus, 1974. 21(4): p. 471-489. [10]. Raup, D.M. and J.J. Sepkoski, Mass extinctions in the marine fossil record. Science, 1982. 215(4539): p. 1501-1503. [11]. Harrop, S.R., ‘Living in harmony with nature’? Outcomes of the 2010 Nagoya Conference of the
@la_baballe @jaqloui21 Bizarrement le registre fossile ne présente aucune extinction de masse d'une tel ampleur qui dépasserai sans problème le niveau de la Grande Faucheuse qui est l'extinction Permien-Trias. https://t.co/4wOj3Z4GBC
@CoelhoPre Van, Valen. "A new evolutionary law." (1973). Raup, D.M. and Sepkoski Jr, J.J., 1982. Mass extinctions in the marine fossil record. Science, 215(4539), 1501-1503 Sepkoski, J.J., 1981. A factor analytic description of the Phanerozoic marine fossil record. Paleobiology, 7(1), 36-53
Earth's atmosphere. Icarus, 1974. 21(4): p. 471-489. [10]. Raup, D.M. and J.J. Sepkoski, Mass extinctions in the marine fossil record. Science, 1982. 215(4539): p. 1501-1503. [11]. Harrop, S.R., ‘Living in harmony with nature’? Outcomes of the 2010 Nagoya Conference of the
@BaranKarapunar In my understanding the cut-off will always be arbitrary, and that's why in my understanding any global scale event that affected multiple groups could be called a mass extinction. Even in their original definition https://t.co/AVAGt0FcRK Raup and Sepkoski ... 1/2 https://t.co/vbmNPtrjdV
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I’m sure !He has reason https://t.co/r31MjJJf4G
Ohhhh ! https://t.co/hijJ1B3cqp
https://t.co/bmfgOMIWCy
Dommage que le titre soit un peu putaclic comme toujours et ne reflètent pas la leçon de Cyrulnik car elle est terriblement efficace. Le multi-culturel reste très compliqué. https://t.co/BOruJydmGr
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RT @lvpaero30: https://t.co/AeG3WcdZ0C
https://t.co/AeG3WcdZ0C
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Quel plaisir d'apprendre de nos anciens. https://t.co/Cz3rsu3weO
https://t.co/DtNYK72PcB
Neuropsychiatre (Dr. Boris Cyrulnik) : On a Tous Une Ame Sœur ! Les Jeun... https://t.co/hmdtkMkyts via @YouTube
https://t.co/OcajOrrIqL
@JAC_Nemesis @estelsiplanetes El concepte d'extinció massiva va rebre una empenta decisiva amb l'article de Raup i Sepkoski del 1982. https://t.co/vLP9DI9hHX
@BaranKarapunar In my understanding the cut-off will always be arbitrary, and that's why in my understanding any global scale event that affected multiple groups could be called a mass extinction. Even in their original definition https://t.co/AVAGt0FcRK Raup and Sepkoski ... 1/2 https://t.co/vbmNPtrjdV
RT @universalsoftw2: Earth's atmosphere. Icarus, 1974. 21(4): p. 471-489. [10]. Raup, D.M. and J.J. Sepkoski, Mass extinctions in the mari…
RT @singerstone: @Edaphosaurus Not marketing at all. These five events were identified as significantly different from background extinctio…
@Edaphosaurus Not marketing at all. These five events were identified as significantly different from background extinction rates back in the day by Raup and Sepkoski. It was published @ScienceMagazine https://t.co/lKhLIESQTs https://t.co/g9zcWnmHMm
Earth's atmosphere. Icarus, 1974. 21(4): p. 471-489. [10]. Raup, D.M. and J.J. Sepkoski, Mass extinctions in the marine fossil record. Science, 1982. 215(4539): p. 1501-1503. [11]. Harrop, S.R., ‘Living in harmony with nature’? Outcomes of the 2010 Nagoya Conference of the
@la_baballe @jaqloui21 Bizarrement le registre fossile ne présente aucune extinction de masse d'une tel ampleur qui dépasserai sans problème le niveau de la Grande Faucheuse qui est l'extinction Permien-Trias. https://t.co/4wOj3Z4GBC
@CoelhoPre Van, Valen. "A new evolutionary law." (1973). Raup, D.M. and Sepkoski Jr, J.J., 1982. Mass extinctions in the marine fossil record. Science, 215(4539), 1501-1503 Sepkoski, J.J., 1981. A factor analytic description of the Phanerozoic marine fossil record. Paleobiology, 7(1), 36-53
So it seems, there’s been several extinction events across Earth’s history. Statistically we aren’t alone in this universe so perhaps we aren’t such a fluke as a species. https://t.co/GOIF0bbrMt https://t.co/LpYIJ19iTk
RT @universalsoftw2: Earth's atmosphere. Icarus, 1974. 21(4): p. 471-489. [10]. Raup, D.M. and J.J. Sepkoski, Mass extinctions in the mari…
Earth's atmosphere. Icarus, 1974. 21(4): p. 471-489. [10]. Raup, D.M. and J.J. Sepkoski, Mass extinctions in the marine fossil record. Science, 1982. 215(4539): p. 1501-1503. [11]. Harrop, S.R., ‘Living in harmony with nature’? Outcomes of the 2010 Nagoya Conference of the
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