a branch of geology dealing with the differentiation of sedimentary rock units on the basis of the fossils they contain.
Origin of biostratigraphy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
The study and categorization of rock strata based on their fossil content and distribution. Biostratigraphic data are often considered together with radiometric and paleoenvironmental data as a means of dating rock strata. Compare lithostratigraphy.
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