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Olson's Extinction and the latitudinal biodiversity gradient of tetrapods in the Permian.
Proc Biol Sci. 2017 Apr 12; 284(1852)PB

Abstract

The terrestrial vertebrate fauna underwent a substantial change in composition between the lower and middle Permian. The lower Permian fauna was characterized by diverse and abundant amphibians and pelycosaurian-grade synapsids. During the middle Permian, a therapsid-dominated fauna, containing a diverse array of parareptiles and a considerably reduced richness of amphibians, replaced this. However, it is debated whether the transition is a genuine event, accompanied by a mass extinction, or whether it is merely an artefact of the shift in sampling from the palaeoequatorial latitudes to the palaeotemperate latitudes. Here we use an up-to-date biostratigraphy and incorporate recent discoveries to thoroughly review the Permian tetrapod fossil record. We suggest that the faunal transition represents a genuine event; the lower Permian temperate faunas are more similar to lower Permian equatorial faunas than middle Permian temperate faunas. The transition was not consistent across latitudes; the turnover occurred more rapidly in Russia, but was delayed in North America. The argument that the mass extinction is an artefact of a latitudinal biodiversity gradient and a shift in sampling localities is rejected: sampling correction demonstrates an inverse latitudinal biodiversity gradient was prevalent during the Permian, with peak diversity in the temperate latitudes.

Authors+Show Affiliations

Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstraβe 43, 10115 Berlin, Germany neil.brocklehurst@mfn-berlin.de.Evolutionary Studies Institute and School of Geosciences, University of the Witwatersrand, Private Bag 3, Johannesburg 2050, South Africa.Evolutionary Studies Institute and School of Geosciences, University of the Witwatersrand, Private Bag 3, Johannesburg 2050, South Africa.Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstraβe 43, 10115 Berlin, Germany. Evolutionary Studies Institute and School of Geosciences, University of the Witwatersrand, Private Bag 3, Johannesburg 2050, South Africa. Institut für Biologie, Humboldt-Universität zu Berlin, Invalidenstraβe 110, Berlin, 10115, Germany.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28381616

Citation

Brocklehurst, Neil, et al. "Olson's Extinction and the Latitudinal Biodiversity Gradient of Tetrapods in the Permian." Proceedings. Biological Sciences, vol. 284, no. 1852, 2017.
Brocklehurst N, Day MO, Rubidge BS, et al. Olson's Extinction and the latitudinal biodiversity gradient of tetrapods in the Permian. Proc Biol Sci. 2017;284(1852).
Brocklehurst, N., Day, M. O., Rubidge, B. S., & Fröbisch, J. (2017). Olson's Extinction and the latitudinal biodiversity gradient of tetrapods in the Permian. Proceedings. Biological Sciences, 284(1852). https://doi.org/10.1098/rspb.2017.0231
Brocklehurst N, et al. Olson's Extinction and the Latitudinal Biodiversity Gradient of Tetrapods in the Permian. Proc Biol Sci. 2017 Apr 12;284(1852) PubMed PMID: 28381616.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Olson's Extinction and the latitudinal biodiversity gradient of tetrapods in the Permian. AU - Brocklehurst,Neil, AU - Day,Michael O, AU - Rubidge,Bruce S, AU - Fröbisch,Jörg, PY - 2017/02/04/received PY - 2017/03/03/accepted PY - 2017/4/7/entrez PY - 2017/4/7/pubmed PY - 2018/2/1/medline KW - Olson's Extinction KW - Permian KW - Tetrapoda KW - latitudinal biodiversity gradient KW - sampling bias JF - Proceedings. Biological sciences JO - Proc Biol Sci VL - 284 IS - 1852 N2 - The terrestrial vertebrate fauna underwent a substantial change in composition between the lower and middle Permian. The lower Permian fauna was characterized by diverse and abundant amphibians and pelycosaurian-grade synapsids. During the middle Permian, a therapsid-dominated fauna, containing a diverse array of parareptiles and a considerably reduced richness of amphibians, replaced this. However, it is debated whether the transition is a genuine event, accompanied by a mass extinction, or whether it is merely an artefact of the shift in sampling from the palaeoequatorial latitudes to the palaeotemperate latitudes. Here we use an up-to-date biostratigraphy and incorporate recent discoveries to thoroughly review the Permian tetrapod fossil record. We suggest that the faunal transition represents a genuine event; the lower Permian temperate faunas are more similar to lower Permian equatorial faunas than middle Permian temperate faunas. The transition was not consistent across latitudes; the turnover occurred more rapidly in Russia, but was delayed in North America. The argument that the mass extinction is an artefact of a latitudinal biodiversity gradient and a shift in sampling localities is rejected: sampling correction demonstrates an inverse latitudinal biodiversity gradient was prevalent during the Permian, with peak diversity in the temperate latitudes. SN - 1471-2954 UR - https://www.unboundmedicine.com/medline/citation/28381616/Olson's_Extinction_and_the_latitudinal_biodiversity_gradient_of_tetrapods_in_the_Permian_ L2 - https://royalsocietypublishing.org/doi/10.1098/rspb.2017.0231?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -