Meaning Of The Word Index fossil

Real Dictionary

What's the definition of Index fossil? Find Index fossil meanings, definitions and more at the Real Dictionary online.

Index fossil Meaning

Index fossil Definition
Index fossil Definition

What's The Definition Of Index fossil?

index fossil in American English
any fossil of wide geographical distribution and a short range in time, used to correlate and date rock strata and their associated fossils
noun: a widely distributed fossil, of narrow range in time, regarded as characteristic of a given geological formation, used esp. in determining the age of related formations

index fossil in British English
noun: a fossil species that characterizes and is used to delimit a geological zone

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