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biostratigraphy

[bahy-oh-struh-tig-ruh-fee] /ˌbaɪ oʊ strəˈtɪg rə fi/
noun
1.
a branch of geology dealing with the differentiation of sedimentary rock units on the basis of the fossils they contain.
Origin
Related forms
biostratigraphic
[bahy-oh-strat-i-graf-ik] /ˌbaɪ oʊˌstræt ɪˈgræf ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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bio stratigraphic in Science
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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