Recognizing and interpreting the fossils of early eukaryotes

[en] 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.

Disciplines :

Earth sciences & physical geography

Author, co-author :

Javaux, Emmanuelle ; Université de Liège - ULiège > Département de géologie > Paléobotanique - Paléopalynologie - Micropaléontologie (PPM)

Knoll, A. H.; Harvard University

Walter, M.; Macquarie university, Sydney Australia

Language :

English

Title :

Recognizing and interpreting the fossils of early eukaryotes

Publication date :

2003

Journal title :

Origins of Life and Evolution of the Biosphere

ISSN :

0169-6149

eISSN :

1573-0875

Publisher :

Kluwer Academic Publishers, Dordrecht, Netherlands

Volume :

Issue :

Pages :

75-94

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 10 February 2010

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Scopus citations^®

132

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101

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115

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