New fossil assemblages from the Early Ordovician Fezouata Biota.

Autor: Saleh F; Institute of Earth Sciences (ISTE), University of Lausanne, Geopolis, 1015, Lausanne, Switzerland. farid.nassim.saleh@gmail.com.; Yunnan Key Laboratory for Palaeobiology, Institute of Palaeontology, Yunnan University, Kunming, China. farid.nassim.saleh@gmail.com.; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Institute of Palaeontology, Yunnan University, Kunming, China. farid.nassim.saleh@gmail.com., Vaucher R; Institute of Earth Sciences (ISTE), University of Lausanne, Geopolis, 1015, Lausanne, Switzerland., Vidal M; Univ Brest, CNRS, Ifremer, Geo-Ocean, UMR 6538, Place Nicolas Copernic, F-29280, Plouzané, France., Hariri KE; Laboratoire de Géoressources, Géoenvironnement Et Génie Civil 'L3G', Faculté Des Sciences Et Techniques, Université Cadi-Ayyad, BP 549, 40000, Marrakesh, Morocco., Laibl L; Czech Academy of Sciences, Institute of Geology, Rozvojová 269, 165 00, Prague 6, Czech Republic., Daley AC; Institute of Earth Sciences (ISTE), University of Lausanne, Geopolis, 1015, Lausanne, Switzerland., Gutiérrez-Marco JC; Instituto de Geociencias (CSIC, UCM), Departamento GEODESPAL, Facultad de Ciencias Geológicas, Spanish Research Council, José Antonio Novais 12, 28040, Madrid, Spain., Candela Y; Department of Natural Sciences, National Museums Scotland, Edinburgh, EH1 1JF, UK., Harper DAT; Palaeoecosystems Group, Department of Earth Sciences, Durham University, Durham, DH1 3LE, UK., Ortega-Hernández J; Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, 02138, USA., Ma X; Yunnan Key Laboratory for Palaeobiology, Institute of Palaeontology, Yunnan University, Kunming, China.; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Institute of Palaeontology, Yunnan University, Kunming, China.; Centre for Ecology and Conservation, University of Exeter, Penryn, UK., Rida A; Université Cadi Ayyad, École Normale Supérieure, Marrakech, Morocco., Vizcaïno D; Independent, 7 rue Chardin, Maquens, 11090, Carcassonne, France., Lefebvre B; Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, CNRS, UMR5276, LGL-TPE, Université de Lyon, Villeurbanne, France.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2022 Dec 13; Vol. 12 (1), pp. 20773. Date of Electronic Publication: 2022 Dec 13.
DOI: 10.1038/s41598-022-25000-z
Abstrakt: The Fezouata Biota (Morocco) is a unique Early Ordovician fossil assemblage. The discovery of this biota revolutionized our understanding of Earth's early animal diversifications-the Cambrian Explosion and the Ordovician Radiation-by suggesting an evolutionary continuum between both events. Herein, we describe Taichoute, a new fossil locality from the Fezouata Shale. This locality extends the temporal distribution of fossil preservation from this formation into the upper Floian, while also expanding the range of depositional environments to more distal parts of the shelf. In Taichoute, most animals were transported by density flows, unlike the in-situ preservation of animals recovered in previously investigated Fezouata sites. Taichoute is dominated by three-dimensionally preserved, and heavily sclerotized fragments of large euarthropods-possibly representing nektobenthic/nektic bivalved taxa and/or hurdiid radiodonts. Resolving whether this dominance reflects a legitimate aspect of the original ecosystem or a preservational bias requires an in-depth assessment of the environmental conditions at this site. Nevertheless, Taichoute provides novel preservational and palaeontological insights during a key evolutionary transition in the history of life on Earth.
(© 2022. The Author(s).)
Databáze: MEDLINE
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