a fossil that is common, widely found in many areas and only lived in one time period index fossil index…

a fossil that is common, widely found in many areas and only lived in one time period index fossil index card stock index index finger

a fossil that is common, widely found in many areas and only lived in one time period index fossil index card stock index index finger

Answer

Brief Explanations:

Index fossils are common, widely - distributed fossils that lived in a single time period and are used for dating rock layers. Index cards are for note - taking, stock indexes are for financial markets, and index fingers are body parts.

Answer:

Index Fossil