I don't know why but I couldn't create a question using welch- in genitive case. I think I must quit studying german for a while.
die typischen Merkmale der Epoche sind oben gelistet.
This is a simple sentence about an era called "Aufklärung", I would like to add a question to this sentence and ask it. But I could not done with it using "welch-". Could you please have a look at my question if it works?
Die typischen Merkmale welcher Epoche ist oben gelistet?
Von welcher Epochen typischen Merkmale sind oben gelistet?