biostratigraphy

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bi·o·stra·tig·ra·phy

 (bī′ō-strə-tĭg′rə-fē)
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

(ˌbaɪəʊstrəˈtɪɡrəfɪ)
n
the examination of the ages of rock strata by using fossils

bi•o•stra•tig•ra•phy

(ˌbaɪ oʊ strəˈtɪg rə fi)

n.
a branch of geology dealing with the differentiation of sedimentary rock.
[1945–50]
bi`o•strat`i•graph′ic (-ˌstræt ɪˈgræf ɪk) adj.
References in periodicals archive ?
Katarzyna pod Lysica, 10-13 wrzesnia 2007 [20th Conference of Paleobiologists and Biostratigraphers of the Polish Geological Society, September 10-13, 2007] (Zylinska, A.
The Cenozoic marine sediments especially the Palaeocene and Eocene rocks are widespread in Pakistan and have attracted attention of various biostratigraphers.
Biostratigraphers now set the appearance of trilobites as the beginning of Cambrian Stage 3, at around 521 Ma (fig.