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 mean it's still quite unlikely though.
(Again - probably not)
if you broke humanity down into one archaeological find per 10k years you probably wouldn't think we had much of a society either.
If dinosaurs ever became like us, there should be a clear layer in the rock where they started throwing their trash on the ground.