The researchers don’t know which ancient human species made the structure and the tools, but it’s unlikely to have been Homo sapiens. The earliest fossils of Homo sapiens found so far date from around 300,000 years ago and were found in Israel, Dull told CNN. He believes the people who made the structure were cognitively sophisticated and it would be very exciting to figure out who constructed this.
If fossilization is the only way for you to recognize history its never going to be complete you will always be missing fragments that changes everything. I guarantee you their are billions if not trillions of species missing because we can only determine by fossilization.