Can old fossils can be found in new rocks?

The study of life’s history on Earth is an ongoing effort to follow the thread further and further back in time. As amazing and fascinating as a few billion years’ worth of fossils are, we still ultimately want that Holy Grail that illuminates the origins of life on Earth. Unfortunately, that goal collides with the fact that the earliest evidence stands the least chance of being preserved through the eons for us to find

It might be possible but you most normally find them in old rocks and places 

hope this helps and have a wonderful; day :))

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