Yeah, right. I’m sure that’s it.
Dinosaur bones, all over the place.
(did I mention NEVER, EVER?)
Hadrosaurs in south Jersey, T-Rexes and Trikes in the Dakotas, Mosasaurs in the Netherlands, lots of places. To be preserved they had to be buried rather soon after death; to be found the overlying layers had to have worn away or digging had to have uncovered them. Marl pits in south Jersey are a good example; marl was mined as a source of potash.