Question

A geologist observes abundant fossils of a distinctive trilobite species in a shale, but this trilobite disappears as she walks through the shale. In younger rocks, just above the horizon where the fossil disappears another species of trilobite becomes the prominent fossil in similar shales. Which conclusion is most logical for this observation

Answer 1

The first trilobite species went extinct and its ecological niche was occupied by another species, which may have evolved from the first cap

Step-by-step explanation:

Considering the knowledge of geography and the situation you described in the text, the correct answer is that ", the Trilobite species went extinct and its ecological niche was occupied by another species, which may have evolved from the first cap.