archaeologist writes:
... that word [erosion] explains why that particular poster cannot make the claim that all dinosuar skeletons and bones are found in 60,000,000 rock and dirt.
Maybe it wasn't explained clearly enough to you. All dinosaur fossils
are found in rocks that are at least 60,000,000 years old. Sometimes erosion removes the younger rocks on top and exposes the fossils but the rocks that the fossils are in are still at least 60,000,000 years old.
So you can dispute the dating of the rocks if you want but you can't really use the fact that they're on the surface as an indication of young age.
Life is like a Hot Wheels car. Sometimes it goes behind the couch and you can't find it.