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Depth and Extent of Early Paleozoic Bioturbation

Published online by Cambridge University Press:  26 July 2017

Mary L. Droser
Affiliation:
Department of Geology Oberlin College Oberlin, OH 44074
David J. Bottjer
Affiliation:
Department of Geological Sciences University of Southern California Los Angeles, CA 90089
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Extract

Marine metazoans have lived infaunally throughout the Phanerozoic. The biotic history of the infaunal habitat is, however, poorly understood. Only the two extremes are relatively well known; the Precambrian had a limited infaunal biological benthic boundary layer (the depth below the sediment-water interface that is occupied or otherwise influenced by benthic organisms [Rhoads and Boyer, 1982]), whereas modern environments have a well-developed infaunal biological benthic boundary layer with extensive and deep bioturbation.

Type
Research Article
Copyright
Copyright © 1990 Paleontological Society 

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