Exceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian

Abstract The mass extinction characterizing the Permian/Triassic boundary (PTB; ~ 252 Ma) corresponds to a major faunal shift between the Palaeozoic and the Modern evolutionary fauna. The temporal, spatial, environmental, and ecological dynamics of the associated biotic recovery remain highly debate...

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Autores principales:	Christopher P. A. Smith, Thomas Laville, Emmanuel Fara, Gilles Escarguel, Nicolas Olivier, Emmanuelle Vennin, Nicolas Goudemand, Kevin G. Bylund, James F. Jenks, Daniel A. Stephen, Michael Hautmann, Sylvain Charbonnier, L. J. Krumenacker, Arnaud Brayard
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d2f8fa065c0d4ed6a16ba1fcf961ec01
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spelling	oai:doaj.org-article:d2f8fa065c0d4ed6a16ba1fcf961ec012021-12-02T18:01:52ZExceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian10.1038/s41598-021-99056-82045-2322https://doaj.org/article/d2f8fa065c0d4ed6a16ba1fcf961ec012021-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99056-8https://doaj.org/toc/2045-2322Abstract The mass extinction characterizing the Permian/Triassic boundary (PTB; ~ 252 Ma) corresponds to a major faunal shift between the Palaeozoic and the Modern evolutionary fauna. The temporal, spatial, environmental, and ecological dynamics of the associated biotic recovery remain highly debated, partly due to the scarce, or poorly-known, Early Triassic fossil record. Recently, an exceptionally complex ecosystem dated from immediately after the Smithian/Spathian boundary (~ 3 myr after the PTB) was reported: the Paris Biota (Idaho, USA). However, the spatiotemporal representativeness of this unique assemblage remained questionable as it was hitherto only reported from a single site. Here we describe three new exceptionally diverse assemblages of the same age as the Paris Biota, and a fourth younger one. They are located in Idaho and Nevada, and are taxonomic subsets of the Paris Biota. We show that the latter covered a region-wide area and persisted at least partially throughout the Spathian. The presence of a well-established marine fauna such as the Paris Biota, as soon as the early Spathian, indicates that the post-PTB biotic recovery and the installation of complex ecosystems probably took place earlier than often assumed, at least at a regional scale.Christopher P. A. SmithThomas LavilleEmmanuel FaraGilles EscarguelNicolas OlivierEmmanuelle VenninNicolas GoudemandKevin G. BylundJames F. JenksDaniel A. StephenMichael HautmannSylvain CharbonnierL. J. KrumenackerArnaud BrayardNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Christopher P. A. Smith Thomas Laville Emmanuel Fara Gilles Escarguel Nicolas Olivier Emmanuelle Vennin Nicolas Goudemand Kevin G. Bylund James F. Jenks Daniel A. Stephen Michael Hautmann Sylvain Charbonnier L. J. Krumenacker Arnaud Brayard Exceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian
description	Abstract The mass extinction characterizing the Permian/Triassic boundary (PTB; ~ 252 Ma) corresponds to a major faunal shift between the Palaeozoic and the Modern evolutionary fauna. The temporal, spatial, environmental, and ecological dynamics of the associated biotic recovery remain highly debated, partly due to the scarce, or poorly-known, Early Triassic fossil record. Recently, an exceptionally complex ecosystem dated from immediately after the Smithian/Spathian boundary (~ 3 myr after the PTB) was reported: the Paris Biota (Idaho, USA). However, the spatiotemporal representativeness of this unique assemblage remained questionable as it was hitherto only reported from a single site. Here we describe three new exceptionally diverse assemblages of the same age as the Paris Biota, and a fourth younger one. They are located in Idaho and Nevada, and are taxonomic subsets of the Paris Biota. We show that the latter covered a region-wide area and persisted at least partially throughout the Spathian. The presence of a well-established marine fauna such as the Paris Biota, as soon as the early Spathian, indicates that the post-PTB biotic recovery and the installation of complex ecosystems probably took place earlier than often assumed, at least at a regional scale.
format	article
author	Christopher P. A. Smith Thomas Laville Emmanuel Fara Gilles Escarguel Nicolas Olivier Emmanuelle Vennin Nicolas Goudemand Kevin G. Bylund James F. Jenks Daniel A. Stephen Michael Hautmann Sylvain Charbonnier L. J. Krumenacker Arnaud Brayard
author_facet	Christopher P. A. Smith Thomas Laville Emmanuel Fara Gilles Escarguel Nicolas Olivier Emmanuelle Vennin Nicolas Goudemand Kevin G. Bylund James F. Jenks Daniel A. Stephen Michael Hautmann Sylvain Charbonnier L. J. Krumenacker Arnaud Brayard
author_sort	Christopher P. A. Smith
title	Exceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian
title_short	Exceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian
title_full	Exceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian
title_fullStr	Exceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian
title_full_unstemmed	Exceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian
title_sort	exceptional fossil assemblages confirm the existence of complex early triassic ecosystems during the early spathian
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d2f8fa065c0d4ed6a16ba1fcf961ec01
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Exceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian

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