index fossil

index fossil


Definition of INDEX FOSSIL

:  a fossil usually with a narrow time range and wide spatial distribution that is used in the identification of related geologic formations

First Known Use of INDEX FOSSIL



Next Word in the Dictionary: index fund
Previous Word in the Dictionary: index forest
All Words Near: index fossil

Seen & Heard

What made you want to look up index fossil? Please tell us where you read or heard it (including the quote, if possible).