ConcepTest: Earth Timeline - the fossil record
This material was originally created for
Starting Point:Introductory Geology
and is replicated here as part of the SERC Pedagogic Service.
and is replicated here as part of the SERC Pedagogic Service.
Question:
Carefully examine the relative positions of the lettered arrows on the timeline below and estimate the ages represented by each arrow. Identify which letter corresponds most closely to the first appearance in the rock record of abundant fossils.
a. A
b. B
c. D
d. E
e. F
a. A
b. B
c. D
d. E
e. F
Student Responses:
No data yet. The correct response is b.
If you would like to help acquire more Before and After statistics for this example, please contact the authors (see link at top of page).