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 Found
Surface None
A A1, A2, B2, B3
B B1, B2, B3
C C1, C2, D2, E2, E3
D D1, D2, E2, E3
E E1, E2, E3
Based on this fossil record data, between which two rock layers does there appear to have been a mass extinction event?
1 answer
Based on the data provided, there appears to have been a mass extinction event between Rock Layers C and D, as many different types of fossils are found in Layer C and Layer D, but relatively few are found in the layers above and below them. This suggests that a significant event occurred during the time period between the deposition of these two layers, leading to the loss of many different species.
1 answer