The Cabrières Biota (France) provides insights into Ordovician polar ecosystems
Saleh, Farid, Lustri, Lorenzo, Gueriau, Pierre, Potin, Gaëtan J.M., Pérez-Peris, Francesc, Laibl, Lukáš, Jamart, Valentin, Vite, Antoine, Antcliffe, Jonathan B., Daley, Allison C., Nohejlová, Martina, Dupichaud, Christophe, Schöder, Sebastian, Bérard, Emilie, Lynch, Sinéad, Drage, Harriet B., Vaucher, Romain, Vidal, Muriel, Monceret, Eric, Monceret, Sylvie, and Lefebvre, Bertrand (2024) The Cabrières Biota (France) provides insights into Ordovician polar ecosystems. Nature Ecology and Evolution, 8 (4). pp. 651-662.
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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.
| Item ID: | 86846 |
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| Item Type: | Article (Research - C1) |
| ISSN: | 2397-334X |
| Copyright Information: | © The Author(s) 2024. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
| Date Deposited: | 02 Sep 2025 03:40 |
| FoR Codes: | 37 EARTH SCIENCES > 3705 Geology > 370506 Palaeontology (incl. palynology) @ 100% |
| SEO Codes: | 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280107 Expanding knowledge in the earth sciences @ 100% |
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