Life on land in the Precambrian

Robert J. Horodyski, L. Paul Knauth

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153 Scopus citations

Abstract

Microfossils have been discovered in cavity-fill and replacement silica that occurs between chert-breccia clasts in 1200-million-year-old paleokarst at the top of the Mescal Limestone, central Arizona, and in ∼800-million-year- old paleokarst at the top of the Beck Spring Dolomite, southeastern California. Microbial communities on Precambrian (>550 million years ago) land may have been extensive enough to affect weathering, erosion, sedimentation, and geochemical processes.

Original languageEnglish (US)
Pages (from-to)494-498
Number of pages5
JournalScience
Volume263
Issue number5146
DOIs
StatePublished - Jan 1 1994

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Horodyski, R. J., & Knauth, L. P. (1994). Life on land in the Precambrian. Science, 263(5146), 494-498. https://doi.org/10.1126/science.263.5146.494