I actually do not need the answer to the question I had previously asked anymore, but you can not delete questions on here. That may be the only flaw of the app! Y'all can use this to get points

Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?