Dinosaurs lived on Earth for about 100,000,000 years, at least 50 times as long as our species. Perhaps some dinosaurs were the most advanced species our planet has ever seen.
I read a stat (maybe not true?) that we've only found around one dinosaur fossil for each 10,000 years that they existed. Maybe we just haven't found peak dino society yet-
if you broke humanity down into one archaeological find per 10k years you probably wouldn't think we had much of a society either.
Most of the time, dino bones don't fossilize. And we only find some small fraction of the small fraction that do. But with glass and ceramics the situation is different. Those are stable in almost all conditions, running water excepted. A beach will break down a coke bottle in a few years but if it lands just about anywhere else it has a high chance of lasting basically forever.
If dinosaurs ever became like us, there should be a clear layer in the rock where they started throwing their trash on the ground.
If dinosaurs had changed their environment as much as humans, there would probably be more than the occasional fortuitously preserved corpse or footprint to find.
They lived so long ago, my understanding is such artifacts would be extremely unlikely to survive. We also haven't looked in that many places at that depth.
Maybe? Depends on what level of manufacturing and materials they achieved. Even then, not super likely. Statistically, bones don't survive that long :) It could just be a matter of time till we find a lucky break.