Absence of evidence is not evidence of absence. Unfortunately most of the (probable) evidence is under meters of water and mud.
My understanding is that there is no evidence for pre-historic human societies that had advanced technologies. We have hard data in our genetics for the timeframes of human existence (statistical rate of random genetic drift vs nearest ancestors) in addition to the fossil record, we have good information from ice cores about when/what of particulates were in the atmosphere, we know general rates of tectonic movements , and it's easy to observe what's under kilometers of strata with drilling cores if anyone has a good hypothesis as to where to drill.