Since fossils are buried during their formation, finding them can be difficult.
Paleontologists do a lot of research to decide where to dig for dinosaurs .
Exposed sedimentary rock is pretty easy to identify - it's in layers. To find an example of exposed sedimentary rock in your area, look at the cut-out area where highways go through hills. The layers should be easily visible. Other places to look are cliffs, rock outcroppings, canyons, badlands, etc., a place that was not an ocean or lake during the Mesozoic, because the dinosaurs lived only on land. Rarely, fossils are observed just sticking out of the ground.