What are the characteristics of index fossils?
Understand the Problem
The question is asking about the features that define index fossils, which are used in geology and paleontology for dating and correlating the age of rock layers.
Answer
Distinctive, abundant, wide geographic distribution, short range through time
The characteristics of index fossils are: 1) distinctive or easily recognizable, 2) abundant, 3) have a wide geographic distribution, and 4) have a short range through time.
Answer for screen readers
The characteristics of index fossils are: 1) distinctive or easily recognizable, 2) abundant, 3) have a wide geographic distribution, and 4) have a short range through time.
More Information
Index fossils are crucial for determining the relative ages of rock layers since they are found in a specific time period and are spread across various locations.
Tips
A common mistake is assuming an index fossil should be present in all geological layers. It's important to remember that they must be limited to specific geologic time periods.
Sources
- The web page with info on - Example Source - britannica.com
- Index Fossils - Definition, Types, Merits, Lists and Characteristics - vedantu.com
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