Organic-walled microfossils in 3.2-billion-year-old shallow-marine siliciclastic deposits

@article{Javaux2010OrganicwalledMI,
  title={Organic-walled microfossils in 3.2-billion-year-old shallow-marine siliciclastic deposits},
  author={Emmanuelle J. Javaux and Craig P. Marshall and Andrey Bekker},
  journal={Nature},
  year={2010},
  volume={463},
  pages={934-938}
}
Although the notion of an early origin and diversification of life on Earth during the Archaean eon has received increasing support in geochemical, sedimentological and palaeontological evidence, ambiguities and controversies persist regarding the biogenicity and syngeneity of the record older than Late Archaean. Non-biological processes are known to produce morphologies similar to some microfossils, and hydrothermal fluids have the potential to produce abiotic organic compounds with depleted… Expand
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References

SHOWING 1-10 OF 36 REFERENCES
Paleobiology of the Neoproterozoic Svanbergfjellet Formation, Spitsbergen
TLDR
A review of Proterozoic multicellular organisms reveals that a coenocytic grade of organization was common among early metaphytes and supports the view (that a cellularity is a derived condition in many ‘multicellular’ lineages). Expand
A new window into Early Archean life: Microbial mats in Earth's oldest siliciclastic tidal deposits (3.2 Ga Moodies Group, South Africa)
Newly discovered sedimentary structures produced by ancient microbial mats in Early Archean sandstones of the 3.2 Ga Moodies Group, South Africa, differ fundamentally in appearance and genesis from… Expand
Photosynthetic microbial mats in the 3,416-Myr-old ocean
TLDR
It is concluded that photosynthetic organisms had evolved and were living in a stratified ocean supersaturated in dissolved silica 3,416 Myr ago. Expand
An actualistic perspective into Archean worlds - (cyano-)bacterially induced sedimentary structures in the siliciclastic Nhlazatse Section, 2.9 Ga Pongola Supergroup, South Africa.
TLDR
A study location is described that displays a unique assemblage with a multitude of exceptionally preserved MISS in the 2.9-Ga-old Pongola Supergroup, South Africa, which is consistent with similar features constructed today by benthic cyanobacteria. Expand
Microfossils and possible microfossils from the Early Archean Onverwacht Group, Barberton Mountain Land, South Africa.
  • M. Walsh
  • Geology, Medicine
  • Precambrian research
  • 1992
TLDR
A variety of spheroidal and ellipsoidal structures present in cherts of the Hooggenoeg and Kromberg Formations resemble modern coccoidal bacteria and bacterial structures, including spores. Expand
Carbonaceous cherts of the Barberton Greenstone Belt, South Africa: Isotopic, chemical and structural characteristics of individual microstructures
Abstract Carbonaceous matter occurring in chert deposits of the 3.4–3.2 Ga old Barberton Greenstone Belt (BGB), South Africa, has experienced low grade regional metamorphism and variable degrees of… Expand
A fresh look at the fossil evidence for early Archaean cellular life
TLDR
The rock record provides unique evidence for testing models as to when and where cellular life first appeared on Earth, but its study, however, requires caution and critical analysis of morphospace and context is needed. Expand
The Proterozoic biosphere : a multidisciplinary study
List of contributors Preface Part I: 1. Geology and paleobiology of the Archean Earth 2. Geological evolution of the Proterozoic Earth 3. Proterozoic biochemistry 4. Proterozoic atmosphere and ocean… Expand
Diverse microstructures from Archaean chert from the Mount Goldsworthy–Mount Grant area, Pilbara Craton, Western Australia: Microfossils, dubiofossils, or pseudofossils?
Abstract A diverse assemblage of indigenous carbonaceous microstructures, classified here as highly probable microfossils to pseudomicrofossils, is present in the >ca. 2.97 Ga Farrel Quartzite (Gorge… Expand
Structured organic remains from the Fig Tree Series (Precambrian) of the Barberton mountain land (South Africa)
Abstract The Fig Tree Series of the Swaziland System in South Africa is, according to radiometric data, more than 3,200 million years old. Cherts and shales, collected in the vicinity of the Sheba… Expand
...
1
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3
4
...