Plot of extinction intensity (percentage of genera that are present in each interval of time but do not exist in the following interval) vs time in the past for marine genera.[1] Geological periods are annotated (by abbreviation and colour) above. The Capitanian extinction event occurred 260–259 million years ago, ~7 million years before the Permian–Triassic extinction event, with just over 35% (according to this source) failing to survive. (source and image info)
The Capitanian mass extinction event, also known as the end-Guadalupian extinction event,[2] the Guadalupian-Lopingian boundary mass extinction,[3] the pre-Lopingian crisis,[4] or the Middle Permian extinction, was an extinction event that predated the end-Permian extinction event. The mass extinction occurred during a period of decreased species richness and increased extinction rates near the end of the Middle Permian, also known as the Guadalupian epoch. It is often called the end-Guadalupian extinction event because of its initial recognition between the Guadalupian and Lopingian series; however, more refined stratigraphic study suggests that extinction peaks in many taxonomic groups occurred within the Guadalupian, in the latter half of the Capitanian age.[5] The extinction event has been argued to have begun around 262 million years ago with the Late Guadalupian crisis, though its most intense pulse occurred 259 million years ago in what is known as the Guadalupian-Lopingian boundary event.[6]
Having historically been considered as part of the end-Permian extinction event, and only viewed as separate relatively recently,[when?][7] this mass extinction is believed to be the third largest of the Phanerozoic in terms of the percentage of species lost, after the end-Permian and Late Ordovician mass extinctions, respectively,[8] while being the fifth worst in terms of ecological severity.[9] The global nature of the Capitanian mass extinction has been called into question by some palaeontologists as a result of some analyses finding it to have affected only low-latitude taxa in the Northern Hemisphere.[10]
^De la Horra, R.; Galán-Abellán, A. B.; López-Gómez, José; Sheldon, Nathan D.; Barrenechea, J. F.; Luque, F. J.; Arche, A.; Benito, M. I. (August–September 2012). "Paleoecological and paleoenvironmental changes during the continental Middle–Late Permian transition at the SE Iberian Ranges, Spain". Global and Planetary Change. 94–95: 46–61. Bibcode:2012GPC....94...46D. doi:10.1016/j.gloplacha.2012.06.008. Retrieved 15 December 2022.
^Cite error: The named reference HuangEtAl2019PPP was invoked but never defined (see the help page).
^Shen, Shu-Zhong; Shi, G. R. (September 2009). "Latest Guadalupian brachiopods from the Guadalupian/Lopingian boundary GSSP section at Penglaitan in Laibin, Guangxi, South China and implications for the timing of the pre-Lopingian crisis". Palaeoworld. 18 (2–3): 152–161. doi:10.1016/j.palwor.2009.04.010. Retrieved 21 December 2022.
^Bond, D. P. G., Wignall, P. B., Wang, W., Izon, G., Jiang, H. S., Lai, X. L., Sund, Y.-D., Newtona, R.J., Shaoe, L.-Y., Védrinea, S. & Cope, H. (2010). "The mid-Capitanian (Middle Permian) mass extinction and carbon isotope record of South China". Palaeogeography, Palaeoclimatology, Palaeoecology, 292 (1-2), pp. 282-294. https://dx.doi.org/10.1016/j.palaeo.2010.03.056
^Kaiho, Kunio (22 July 2022). "Relationship between extinction magnitude and climate change during major marine and terrestrial animal crises". Biogeosciences. 19 (14): 3369–3380. Bibcode:2022BGeo...19.3369K. doi:10.5194/bg-19-3369-2022. Retrieved 18 March 2023.
^Rampino, Michael R.; Shen, Shu-Zhong (5 September 2019). "The end-Guadalupian (259.8 Ma) biodiversity crisis: the sixth major mass extinction?". Historical Biology. 33 (5): 716–722. doi:10.1080/08912963.2019.1658096. S2CID 202858078. Retrieved 26 December 2022.
^Isozaki, Yukio; Servais, Thomas (8 December 2017). "The Hirnantian (Late Ordovician) and end-Guadalupian (Middle Permian) mass-extinction events compared". Lethaia. 51 (2): 173–186. doi:10.1111/let.12252. Retrieved 23 October 2022.
^McGhee Jr., George R.; Clapham, Matthew E.; Sheehan, Peter M.; Bottjer, David J.; Droser, Mary L. (15 January 2013). "A new ecological-severity ranking of major Phanerozoic biodiversity crises". Palaeogeography, Palaeoclimatology, Palaeoecology. 370: 260–270. Bibcode:2013PPP...370..260M. doi:10.1016/j.palaeo.2012.12.019. Retrieved 2 December 2022.
^Metcalfe, I.; Crowley, J. L.; Nicholl, R. S.; Schmitz, M. (August 2015). "High-precision U-Pb CA-TIMS calibration of Middle Permian to Lower Triassic sequences, mass extinction and extreme climate-change in eastern Australian Gondwana". Gondwana Research. 28 (1): 61–81. Bibcode:2015GondR..28...61M. doi:10.1016/j.gr.2014.09.002. Retrieved 22 December 2022.
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Marine extinction intensity during Phanerozoic % Millions of years ago (H) K–Pg Tr–J P–Tr Cap Late D O–S The Capitanianmassextinctionevent, also known...
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