biostratigraphy

noun
bio·​stra·​tig·​ra·​phy | \ ˌbī-ō-strə-ˈti-grə-fē How to pronounce biostratigraphy (audio) \

Definition of biostratigraphy

1 : the identification of fossils found within sedimentary rock strata as a method of determining the relative geologic age of the rock also : the branch of paleontology involving such identification
2 : the arrangement of fossils in rock strata

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Other Words from biostratigraphy

biostratigraphic \ ˌbī-​ō-​ˌstra-​tə-​ˈgra-​fik \ adjective

Examples of biostratigraphy in a Sentence

Recent Examples on the Web

Researchers also used biostratigraphy, which is the study of how fossils appear, proliferate and disappear throughout the rock record, to establish relative ages. Erin Dimaggio, Smithsonian, "How Do Scientists Date Fossils?," 13 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biostratigraphy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of biostratigraphy

1921, in the meaning defined at sense 1

History and Etymology for biostratigraphy

International Scientific Vocabulary

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Time Traveler for biostratigraphy

The first known use of biostratigraphy was in 1921

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