Biostratigraphy

Question 1

What makes a good index fossil?

Answer 1

-If the animal is alive for a short period of time
-Larger fossil/ over large area

Question 2

Basic unit for biostratigraphy is

Answer 2

biozone

Question 3

Types of Biozones

Answer 3

-Range zone
-Overlap zone
-Gap zone
-Assemblage zone
-Acme zone

Question 4

Limitations to Biostratigraphy

Answer 4

-Environmental dependence
-Narrow but not absolute time