The Cabrières Biota (France) provides insights into Ordovician polar ecosystems
Type | Article | ||||||||||||||||
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Date | 2024-04 | ||||||||||||||||
Language | English | ||||||||||||||||
Author(s) | Saleh Farid1, Lustri Lorenzo1, Gueriau Pierre1, 2, Potin Gaëtan J.-M.1, Pérez-Peris Francesc1, 3, Laibl Lukáš4, Jamart Valentin1, Vite Antoine1, 5, Antcliffe Jonathan B.1, Daley Allison C.1, Nohejlová Martina6, Dupichaud Christophe5, Schöder Sebastian7, Bérard Emilie7, Lynch Sinéad1, Drage Harriet B.1, Vaucher Romain1, 8, Vidal Muriel9, Monceret Eric10, Monceret Sylvie10, Lefebvre Bertrand5 | ||||||||||||||||
Affiliation(s) | 1 : Institute of Earth Sciences, University of Lausanne, Lausanne, Switzerland 2 : Université Paris-Saclay, CNRS, ministère de la Culture, UVSQ, MNHN, Institut photonique d’analyse non-destructive européen des matériaux anciens, Saint-Aubin, France 3 : Department of Earth and Environmental Sciences, University of Iowa, Iowa City, IA, USA 4 : Czech Academy of Sciences, Institute of Geology, Prague, Czech Republic 5 : Université de Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, CNRS, UMR5276, LGL-TPE, Villeurbanne, France 6 : Czech Geological Survey, Prague, Czech Republic 7 : Synchrotron SOLEIL, L’Orme des merisiers, Gif-sur-Yvette, France 8 : Department of Earth Sciences, University of Geneva, Geneva, Switzerland 9 : Univ Brest, CNRS, Ifremer, Geo-Ocean, UMR 6538, Plouzané, France 10 : Société d’Etudes Scientifiques de l’Aude, Carcassonne, France |
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Source | Nature Ecology & Evolution (2397-334X) (Springer Science and Business Media LLC), 2024-04 , Vol. 8 , P. 651-662 | ||||||||||||||||
DOI | 10.1038/s41559-024-02331-w | ||||||||||||||||
Keyword(s) | Palaeoecology, Palaeontology | ||||||||||||||||
Abstract | Early Palaeozoic sites with soft-tissue preservation are predominantly found in Cambrian rocks and tend to capture past tropical and temperate ecosystems. In this study, we describe the diversity and preservation of the Cabrières Biota, a newly discovered Early Ordovician Lagerstätte from Montagne Noire, southern France. The Cabrières Biota showcases a diverse polar assemblage of both biomineralized and soft-bodied organisms predominantly preserved in iron oxides. Echinoderms are extremely scarce, while sponges and algae are abundantly represented. Non-biomineralized arthropod fragments are also preserved, along with faunal elements reminiscent of Cambrian Burgess Shale-type ecosystems, such as armoured lobopodians. The taxonomic diversity observed in the Cabrières Biota mixes Early Ordovician Lagerstätten taxa with Cambrian forms. By potentially being the closest Lagerstätte to the South Pole, the Cabrières Biota probably served as a biotic refuge amid the high-water temperatures of the Early Ordovician, and shows comparable ecological structuring to modern polar communities. |
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