bi·o·stra·tig·ra·phy (b   -str -t g r-f )n. The study of the spatial and temporal distribution of fossil organisms, often interpolated with radiometric, geochemical, and paleoenvironmental information as a means of dating rock strata. |
| biostratigraphy (b-str-tgr-f) 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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