There are two strategies, which are worked together. First, go to some area where the exposed rocks are the proper age for dinosaur fossils. Second, look around to see if any of them are "weathering out" of the matrix.
Mineralized bones and other hard parts tend to be a little bit more resistent that the surrounding rock, so as wind and water remove rock, sometimes the bones poke out. Of course, if nobody notices them and digs them out, they eventually weather away as well and we never know they were there.
Some places are particularly likely depositories, such as areas that WERE the terminus of streams because not only might bones have been washed down to them, but the slow-moving water there would have allowed fine particles of clay to settle over them -- just the stuff to make fossils in a few million years.
In any case, the skill of a paleontologist includes 1) patience in shifting, screening, washing and sorting little bits that might be bones and 2) experience in recognizing the things that are. Most fossil bones are little broken bits; it's only once in a great while that a huge solid thighbone or skull weathers out.
Fossils are found when a rock layer holding a fossil is weathered until the fossil is exposed. Often times the fossil ends up reburied under the soil, and then it may be discovered by digging during construction or agriculture. Many major fossil discoveries have been made this way. Additionally, paleontologists know how to find areas where fossils are likely to be found, and then they dig for them.
people found fossils and dinosaur bones for evidence, and footstep markings
The bones of dinosaurs were discovered by people digging or by just stumbling on them.
by there fossils
yes. It's not like it was discovered in space =D
A cave man and the scientist
1
there where many species of dinosaurs some of them still might not have been discovered yet
it's impossible to know exactly because not all the dinosaurs have been discovered yet.
2
It's impossible to know exact amount because not all the dinosaurs had been discovered yet.
Dinosaurs had not yet been discovered in Jesus' time. They lived and died millions of years earlier.
Dinosaurs were first discovered 60,0000 Years ago!
First off, plesiosaurs and pterodactyl were not dinosaurs. Plesiosaurs were their own group of reptiles more closely related to lizards than to dinosaurs. Pterodactyl was a pterosaur, which were a group separate from, but related to dinosaurs. Plesiosaurs are generally considered to have been discovered by Mary Anning. Pterosaurs are said to have been discovered by Cosmio Collini.
Yes, there was recently discovered forms of ancient life on mars that looked like dinosaurs