Meaning Of The Word Index fossil
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 |
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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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