when comparing europe to north america, which north american layer likely formed at the same time as…

when comparing europe to north america, which north american layer likely formed at the same time as european layer w? https://mote.com/m/mrmg6j2 location: north america location: europe key trilobite fish mammal bird shell plant extrusion (lava) ammonite dinosaur intrusion a b c f
Answer
Brief Explanations:
To determine which North - American layer formed at the same time as European layer W, we need to use the principle of fossil correlation. Fossils in the same layer in different regions likely indicate the same time of deposition. By comparing the fossils in each layer of North - America with those in European layer W, we can make a determination. However, without seeing the actual fossils in layer W and in each option layer in North - America, we assume that we are looking for a layer with similar fossil assemblages.
Answer:
(No answer can be provided without more information about the fossils in layer W and in options A, B, C, F)