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Science 10 July 1970:
Vol. 169. no. 3941, pp. 171 - 173
DOI: 10.1126/science.169.3941.171
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Articles

Phanerozoic Stromatolites: Noncompetitive Ecologic Restriction by Grazing and Burrowing Animals

Peter Garrett 1

1 Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, Maryland 21218

The abundance of stromatolites (algal laminated sedimentary structures) in the Precambrian followed by a decline in the Phanerozoic is explained by the evolution and diversification during the Phanerozoic of grazing animals which feed on surface algal mats and of burrowing animals which destroy sedimentary laminations.


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