Global patterns of organic‐walled phytoplankton biodiversity during the late Silurian to earliest Devonian
| Autor: | Gary L. Mullins, Ken J. Dorning, Reed Wicander, Alain Le Hérissé |
|---|---|
| Přispěvatelé: | Domaines Océaniques (LDO), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS), Université européenne de Bretagne - European University of Brittany (UEB), Department of Geology [Leicester], University of Leicester, Pallab Research, Department of geology, Central Michigan University (CMU) |
| Rok vydání: | 2009 |
| Předmět: |
010506 paleontology
Paleozoic Biodiversity Acritarch Paleontology 15. Life on land 010502 geochemistry & geophysics 01 natural sciences Devonian late silurian acritarch Taxon Abundance (ecology) organic-walled phytoplankton Phytoplankton Marine ecosystem 14. Life underwater marine ecosystems [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology earliest devonian Geology ComputingMilieux_MISCELLANEOUS biodiversity 0105 earth and related environmental sciences |
| Zdroj: | Palynology Palynology, Taylor & Francis, 2009, 33, pp.25-75 |
| ISSN: | 1558-9188 0191-6122 |
| DOI: | 10.1080/01916122.2009.9989665 |
| Popis: | Numerous environmental factors as well as oceanic circulation patterns and geographic constraints all contribute to the abundance, distribution, and diversity of present-day marine phytoplankton assemblages. These same factors presumably affected the Paleozoic marine phytoplankton, which was dominated by organic-walled acritarchs and prasinophytes. During the Late Silurian (Gorstian, Ludfordian, and Přidoli) and earliest Devonian (Lochkovian), important paleogeographic, paleooceanographic, and geochemical changes were occurring as well as major compositional changes and diversity fluctuations in the marine organic-walled phytoplankton. Innovative morphologies appeared during the Late Silurian, in both low and high latitude assemblages, but with significant quantitative differences. This was followed by a turnover in assemblage composition during the Silurian/Devonian transition, and an initial radiation of new acritarch and prasinophyte taxa in the Early Devonian. Observed changes in total phytop... |
| Databáze: | OpenAIRE |
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