The following table shows data about the types of fossils found in certain sedimentary rock layers from the surface down to the lowest rock layer (Rock Layer E):Rock Layer Fossils FoundSurface NoneA A1, A2, B2, B3B B1, B2, B3C C1, C2, D2, E2, E3D D1, D2, E2, E3E E1, E2, E3Based on this fossil record data, between which two rock layers does there appear to have been a mass extinction event?(1 point)
1 answer
Based on the data, there appears to have been a mass extinction event between Rock Layer C and Rock Layer D. This is because the fossils found in Rock Layer C (C1, C2, D2, E2, E3) are different from the fossils found in Rock Layer D (D1, D2, E2, E3), indicating a significant change in the types of fossils present between these two rock layers.