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Olson's Extinction

Olson's Extinction was a mass extinction that occurred 273 million years ago in the late Cisuralian or early Guadalupian epoch of the Permian period, predating the much larger Permian–Triassic extinction event.[1][2][3] The event is named after American paleontologist Everett C. Olson, who first identified the gap in fossil record indicating a sudden change between the early Permian and middle/late Permian faunas. Some authors also place a hiatus in the continental fossil record around that time,[4][2] but others disagree.[5][6][7][8][9] This event has been argued by some authors to have affected many taxa, including embryophytes, marine metazoans, and tetrapods.

  1. ^ Sahney, S.; Benton, M.J. (2008). "Recovery from the most profound mass extinction of all time". Proceedings of the Royal Society B: Biological Sciences. 275 (1636): 759–65. doi:10.1098/rspb.2007.1370. PMC 2596898. PMID 18198148.
  2. ^ a b Lucas, S. G. (1 July 2017). "Permian tetrapod extinction events". Earth-Science Reviews. 170: 31–60. Bibcode:2017ESRv..170...31L. doi:10.1016/j.earscirev.2017.04.008. ISSN 0012-8252.
  3. ^ Didier, Gilles; Laurin, Michel (9 December 2021). "Distributions of extinction times from fossil ages and tree topologies: the example of mid-Permian synapsid extinctions". PeerJ. 9: e12577. doi:10.7717/peerj.12577. PMC 8667717. PMID 34966586.
  4. ^ Cite error: The named reference LSG04 was invoked but never defined (see the help page).
  5. ^ Reisz, Robert R.; Laurin, Michel (1 September 2001). <1229:TRMFVE>2.0.CO;2 "The reptile Macroleter: First vertebrate evidence for correlation of Upper Permian continental strata of North America and Russia". GSA Bulletin. 113 (9): 1229–1233. Bibcode:2001GSAB..113.1229R. doi:10.1130/0016-7606(2001)113<1229:TRMFVE>2.0.CO;2. ISSN 0016-7606.
  6. ^ Cite error: The named reference MJB2012A was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Brocklehurst2017 was invoked but never defined (see the help page).
  8. ^ Brocklehurst, Neil (10 June 2020). "Olson's Gap or Olson's Extinction? A Bayesian tip-dating approach to resolving stratigraphic uncertainty". Proceedings of the Royal Society B: Biological Sciences. 287 (1928): 20200154. doi:10.1098/rspb.2020.0154. PMC 7341920. PMID 32517621.
  9. ^ Laurin, Michel; Hook, Robert W. (2022). "The age of North America's youngest Paleozoic continental vertebrates: a review of data from the Middle Permian Pease River (Texas) and El Reno (Oklahoma) Groups". BSGF - Earth Sciences Bulletin. 193: 10. doi:10.1051/bsgf/2022007. ISSN 1777-5817.

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