biostratigraphy


bio·stra·tig·ra·phy

noun \-strə-ˈti-grə-fē\

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
bio·strat·i·graph·ic \-ˌstra-tə-ˈgra-fik\ adjective

Origin of BIOSTRATIGRAPHY

International Scientific Vocabulary
First Known Use: 1926

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