Contrasting Early Ordovician assembly patterns highlight the complex initial stages of the Ordovician Radiation.

Autor: Saleh F; 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., Guenser P; Université Claude Bernard Lyon 1, CNRS, UMR5023, LEHNA, Université de Lyon, 69622, Villeurbanne, France., Gibert C; Laboratoire de la Préhistoire à l'Actuel: Culture, Environnement et Anthropologie (PACEA, UMR 5199 CNRS, INEE), University of Bordeaux, Bordeaux, France. corentingibert@gmail.com., Balseiro D; Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina.; Centro de Investigaciones en Ciencias de la Tierra (CICTERRA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Vélez Sarsfield 1611, CP X5016GCA, Córdoba, Argentina., Serra F; Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina.; Centro de Investigaciones en Ciencias de la Tierra (CICTERRA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Vélez Sarsfield 1611, CP X5016GCA, Córdoba, Argentina., Waisfeld BG; Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina.; Centro de Investigaciones en Ciencias de la Tierra (CICTERRA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Vélez Sarsfield 1611, CP X5016GCA, Córdoba, Argentina., Antcliffe JB; Institute of Earth Sciences, University of Lausanne, Géopolis, 1015, Lausanne, Switzerland., Daley AC; Institute of Earth Sciences, University of Lausanne, Géopolis, 1015, Lausanne, Switzerland., Mángano MG; Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK, S7N 5E2, Canada., Buatois LA; Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK, S7N 5E2, Canada., Ma X; Yunnan Key Laboratory for Palaeobiology, Institute of Palaeontology, Yunnan University, Kunming, China. X.Ma2@exeter.ac.uk.; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Institute of Palaeontology, Yunnan University, Kunming, China. X.Ma2@exeter.ac.uk.; Centre for Ecology and Conservation, University of Exeter, Penryn, UK. X.Ma2@exeter.ac.uk., Vizcaïno D; Carcassonne, France., Lefebvre B; Université Claude Bernard Lyon1, École Normale Supérieure de Lyon, CNRS, UMR5276, LGL-TPE, Université de Lyon, Villeurbanne, France.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2022 Mar 09; Vol. 12 (1), pp. 3852. Date of Electronic Publication: 2022 Mar 09.
DOI: 10.1038/s41598-022-07822-z
Abstrakt: The Early Ordovician is a key interval for our understanding of the evolution of life on Earth as it lays at the transition between the Cambrian Explosion and the Ordovician Radiation and because the fossil record of the late Cambrian is scarce. In this study, assembly processes of Early Ordovician trilobite and echinoderm communities from the Central Anti-Atlas (Morocco), the Montagne Noire (France), and the Cordillera Oriental (Argentina) are explored. The results show that dispersal increased diachronically in trilobite communities during the Early Ordovician. Dispersal did not increase for echinoderms. Dispersal was most probably proximally triggered by the planktic revolution, the fall in seawater temperatures, changes in oceanic circulation, with an overall control by tectonic frameworks and phylogenetic constraints. The diachronous increase in dispersal within trilobite communities in the Early Ordovician highlights the complexity of ecosystem structuring during the early stages of the Ordovician Radiation. As Early Ordovician regional dispersal was followed by well-documented continental dispersal in the Middle/Late Ordovician, it is possible to consider that alongside a global increase in taxonomic richness, the Ordovician Radiation is also characterized by a gradual increase in dispersal.
(© 2022. The Author(s).)
Databáze: MEDLINE
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