Diversity dynamics of Devonian terrestrial palynofloras from China: Regional and global significance

Autor: Claude Monnet, Thomas Servais, Xianghong Dong, Borja Cascales-Miñana, Zhen Shen, Yiming Gong, David M. Kroeck
Přispěvatelé: Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 (Evo-Eco-Paléo), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 (Evo-Eco-Paléo (EEP))
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Earth-Science Reviews
Earth-Science Reviews, Elsevier, 2020, 200, pp.102967. ⟨10.1016/j.earscirev.2019.102967⟩
Earth-Science Reviews, 2020, 200, pp.102967. ⟨10.1016/j.earscirev.2019.102967⟩
ISSN: 0012-8252
Popis: International audience; The microfossil-based pattern of the Devonian land plants of China is revised and discussed based on a newly comprehensive dataset. Such dataset compiles the chronostratigraphical distribution of 1677 species belonging to190 genera of spores and pollen from the primary literature, which recovers the fossil history of Chinese terrestrial palynofloras. From this, we describe the patterns and biodiversity dynamics using both range-based and occurrence-based data to illustrate the main fluctuations of Devonian taxonomic richness, including rarefaction for filtering out uneven sampling. Results show that the apparent terrestrial palynofloral diversity of China increases progressively from the early to mid-Devonian, with a genuine Givetian peak followed by a plateau persisting during the Late Devonian. Results further suggest that sampling effects may strongly influence the perception of biodiversity trends of China, as well as that the observed Late Devonian taxonomic diversification may have been greatly overestimated. Compiled evidence is discussed on the light of the global evolution of marine-terrestrial ecosystems. We hypothesize that the rise of Devonian floras may have played a remarkable role in an oceanic oxygenation event during this Period.
Databáze: OpenAIRE