Question

this diagram shows fossils in an undisturbed sedimentary rock sequence.
shallowerdeeper
which of the following fossils is oldest? select the most likely answer.
crocodile egg
seaweed
ammonite

Explanation:

In undisturbed sedimentary rock, deeper layers form first, so fossils in the deepest layer are the oldest. The ammonite fossil is in the deepest (bottom) layer of the sequence.

Answer:

C. ammonite