Cited by 39Paleontology and Stratigraphy of FossilsEvolution and Paleontology StudiesEarth Systems and Cosmic Evolution

Macroevolutionary turnover through the Ediacaran transition: ecological and biogeochemical implications

Butterfield, Nicholas J.·2009·Geological Society, London, Special Publications

Abstract

Ecological and evolutionary principles are often context-dependent, particularly where the context is biologically defined. Organ-grade animals (eumetazoans) are particularly powerful contextual agents, with a unique capacity to drive escalatory co-evolution and build multi-tiered food-webs. The evolution of eumetazoans through the Ediacaran and early Cambrian fundamentally altered macroecological and macroevolutionary dynamics, including the structure and function of the marine carbon cycle. Pelagic eumetazoans can be held responsible for driving the evolution of relatively large eukaryotic phytoplankton, thereby shifting the system from a turbid, stratified, cyanobacteria-dominated stable state to the clear-water, well-oxygenated, algae-dominated condition typical of the Phanerozoic. Intermittent return to the pre-Ediacaran state during Phanerozoic extinctions and oceanic anoxic events suggests that the widespread anoxia detected in pre-Ediacaran deep-marine sequences may be a consequence of this alternate biological pump rather than a reflection of fundamentally lower levels of atmospheric oxygen. The transition between the pre- and post-Ediacaran states is also associated with the oldest commercially exploitable hydrocarbons, a possible by-product of invading animals and their top-down impact on the biological pump.

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Crossref · 10.1144/sp326.3

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Authors
Butterfield, N. J.
Affiliations
University of Cambridge (GB)
Corresponding author
Butterfield, Nicholas J.
Venue
Geological Society, London, Special Publications
Published
2009-01
Volume
326
Issue
1
Pages
55-66
ISSN
  • 0305-8719 (ISSN-L)
  • 2041-4927
OpenAlex
W2039281489
Cited by
39
References
27
Citations by year
2026: 2 · 2024: 6 · 2023: 2 · 2022: 4 · 2021: 4 · 2020: 2 · 2019: 1 · 2018: 2 · 2017: 4 · 2016: 2 · 2015: 1 · 2014: 1 · 2013: 2
FWCI
1.57
Type
journal article
Language
en
Open access
closed
Locations
  • Geological Society London Special Publications (publishedVersion)
  • Department of Earth Sciences EPrints Repository (acceptedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Earth Systems and Cosmic Evolution
Keywords
Ediacaran, ocean carbon cycle, biological carbon pump, ocean anoxia, Lower Cambrian, hydrocarbons, atmospheric oxygen, food webs

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