If two different species of fish fossils were found in two different layers of sedimentary rock, what might one infer about the specimens?
A)The species in lower layer died first
B)They died at the same time
C)The species in the higher layer evolved from the species in the lower layer
D)The species in the higher layer died first

Question

Quizplus · Accepted Answer

In sedimentary rock layers, the principle of superposition suggests that lower layers are older than higher layers. Therefore, the species in the lower layer likely died before the species in the higher layer.

If Two Different Species of Fish Fossils Were Found in Two