Question

multiple choice 1 point on a field trip students found 2 different seashell fossils (fossil a, and fossil b) in the same rock layer 5 miles away from each other. which of the following is true about the 2 seashell fossils found in the same rock layer? fossil a is most likely older than fossil b. they most likely did not live during the same time. they most likely lived at the same time. fossil b is most likely older than fossil a.

Explanation:

In geology and paleontology, fossils found in the same rock layer are generally from organisms that lived during the same time period. This is based on the principle of superposition and the concept that the same rock layer (stratum) is deposited over a relatively consistent time frame. So, if two fossils are in the same rock layer, they most likely lived at the same time. The other options are incorrect: there's no basis to say one is older than the other just from being in the same layer, and the idea they didn't live at the same time goes against stratigraphic principles.

Answer:

They most likely lived at the same time.