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Science. 1992 May 1;256(5057):622-7.

The early evolution of eukaryotes: a geological perspective.

Author information

1
Harvard University, Botanical Museum, Cambridge, MA 02138.
2
Harvard U, Cambridge, MA

Abstract

Molecular phylogenies of eukaryotic organisms imply patterns of biological and environmental history that can be tested against the geological record. As predicted by sequence comparisons, Precambrian rocks show evidence of episodic increases in biological diversity and atmospheric oxygen concentrations. Nonetheless, complete integration of the two records remains elusive and may require that the earliest macroscopic organisms be recognized as extinct experiments in eukaryotic multicellularity.

PMID:
1585174
DOI:
10.1126/science.1585174
[Indexed for MEDLINE]

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