[ bahy-oh-struh-tig-ruh-fee ]
/ ˌbaɪ oʊ strəˈtɪg rə fi /
a branch of geology dealing with the differentiation of sedimentary rock units on the basis of the fossils they contain.
Related formsbi·o·strat·i·graph·ic [bahy-oh-strat-i-graf-ik] /ˌbaɪ oʊˌstræt ɪˈgræf ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Science definitions for biostratigraphy
[ bī′ō-strə-tĭg′rə-fē ]
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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