References of "Javaux, Emmanuelle"
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See detailExtremophiles, early Earth biosphere and exobiology
Javaux, Emmanuelle ULg; Marshall, C.

Poster (2004)

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See detailProtistan evolution in the Precambrian: a new multidisciplinary approach combining microscopy and microchemistry
Javaux, Emmanuelle ULg; Marchall, C. P.; Knoll, A. H. et al

Conference (2004)

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See detailEvolution de la biosphère au Précambrien
Javaux, Emmanuelle ULg

Scientific conference (2004)

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See detailA la recherche de la vie dans le système solaire
Javaux, Emmanuelle ULg

Article for general public (2004)

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See detailEvolution des eucaryotes au Précambrien
Javaux, Emmanuelle ULg

Scientific conference (2004)

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See detailA la recherche de la vie dans l’univers
Javaux, Emmanuelle ULg

Article for general public (2004)

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See detailThe hunt for early eukaryotes in Archean and Proterozoic oceans
Javaux, Emmanuelle ULg; Knoll, A. H.; Marshall, C. P. et al

Poster (2003)

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See detailILLUSTRATION OF MODERN BENTHIC FORAMINIFERA FROMBERMUDA AND REMARKS ON DISTRIBUTION IN OTHER SUBTROPICAL/TROPICAL AREAS
Javaux, Emmanuelle ULg; Scott, David

in Palaeontologia Electronica (2003), 6(4), 1-29

A scanning light microscope (SLM) is used to illustrate recent benthic foraminiferal species from surface sediment samples collected in Bermuda subtropical environments. Species illustrated here are the ... [more ▼]

A scanning light microscope (SLM) is used to illustrate recent benthic foraminiferal species from surface sediment samples collected in Bermuda subtropical environments. Species illustrated here are the main foraminiferal species found in Bermuda lagoons, reefs, caves, mangroves, and ponds, but also occur in most subtropical and tropical areas. The SLM permits photography of specimens without coating and gives pictures most similar to specimens that micropaleontologists see under a dissecting reflected light microscope in a petri dish with water, in contrast to images made with scanning electron microscopes. These pictures are the first SLM illustrations of subtropical/tropical species of benthic foraminifera and will be very useful for their identification. Bermuda recent sediment hosts a benthic foraminifera fauna as diverse as in other subtropical and tropical areas, and the general trends of foraminiferal distribution and morphology are similar. Remarks on foraminiferal distribution in Bermuda and other subtropical/tropical areas are also presented. [less ▲]

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See detailRecognizing and interpreting the fossils of early eukaryotes
Javaux, Emmanuelle ULg; Knoll, A. H.; Walter, M.

in Origins of Life & Evolution of the Biosphere (2003), 33(1), 75-94

Using molecular sequence data, biologists can generate hypotheses of protistan phylogeny and divergence times. Fossils, however, provide our only direct constraints on the timing and environmental context ... [more ▼]

Using molecular sequence data, biologists can generate hypotheses of protistan phylogeny and divergence times. Fossils, however, provide our only direct constraints on the timing and environmental context of early eukaryotic diversification. For this reason, recognition of eukaryotic fossils in Proterozoic rocks is key to the integration of geological and comparative biological perspectives on protistan evolution. Microfossils preserved in shales of the ca. 1500 Ma Roper Group, northern Australia, display characters that ally them to the Eucarya, but, at present, attribution to any particular protistan clade is uncertain. Continuing research on wall ultrastructure and microchemistry promises new insights into the nature and systematic relationships of early eukaryotic fossils. [less ▲]

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See detailL’astrobiologie
Javaux, Emmanuelle ULg

Scientific conference (2003)

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See detailDiversity and complexity of Early Eukaryotic cells
Javaux, Emmanuelle ULg; Knoll, A. H.; Walter, M.

Conference (2003)

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See detailRecognizing and interpreting the fossils of early eukaryotes.
Javaux, Emmanuelle ULg; Knoll, Andrew H; Walter, Malcolm

Conference (2002, October)

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See detailEarly eukaryotic diversification
Javaux, Emmanuelle ULg; knoll, A. H.; Walter, M.

Conference (2002)

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See detailCytological and ecological complexity in the Early Mesoproterozoic.
Javaux, Emmanuelle ULg; Knoll, A. H.; Walter, M.

Conference (2001, November)

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See detailComplex protists in Mesoproterozoic rocks.
Javaux, Emmanuelle ULg; knoll, A. H.; Walter, M.

Conference (2001, April)

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See detailMorphological and ecological complexity in early eukaryotic ecosystems
Javaux, Emmanuelle ULg; Knoll, A. H.; Walter, M. R.

in Nature (2001), 412(6842), 66-69

Molecular phylogeny and biogeochemistry indicate that eukaryotes differentiated early in Earth history. Sequence comparisons of small-subunit ribosomal RNA genes suggest a deep evolutionary divergence of ... [more ▼]

Molecular phylogeny and biogeochemistry indicate that eukaryotes differentiated early in Earth history. Sequence comparisons of small-subunit ribosomal RNA genes suggest a deep evolutionary divergence of Eukarya and Archaea(1); C-27-C-29 steranes (derived from sterols synthesized by eukaryotes) and strong depletion of C-13 (a biogeochemical signature of methanogenic Archaea) in 2,700 Myr old kerogens independently place a minimum age on this split(2,3). Steranes, large spheroidal microfossils, and rare macrofossils of possible eukaryotic origin occur in Palaeoproterozoic rocks(4-6). Until now, however, evidence for morphological and taxonomic diversification within the domain has generally been restricted to very late Mesoproterozoic and Neoproterozoic successions(7). Here we show that the cytoskeletal and ecological prerequisites for eukaryotic diversification were already established in eukaryotic microorganisms fossilized nearly 1,500 Myr ago in shales of the early Mesoproterozoic Roper Group in northern Australia. [less ▲]

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See detailComplex protists in Mesoproterozoic rocks.
Javaux, Emmanuelle ULg; Knoll, A. H.; Walter, Malcolm

Conference (2001)

Detailed reference viewed: 5 (1 ULg)