Seems like WILLOWTREE needs to take a course in taphonomy, the study of how fossils form.
Let's imagine that you are living in east Africa a few million years ago, like
Australopithecus africanus and similar species. You die, and what happens next?
If some hyenas find you, there will not be much left of you when they were done; hyenas eat nearly
all of a corpse, skin and bones and all.
Other scavengers, like jackals, vultures, big cats, etc. may not eat your bones, but are likely to break and scatter them as they eat.
And passing herds of ungulates will likely trample your bones, breaking them even further.
And finally, small rodents and the like will gnaw at your bones, hoping to get minerals.
So if you wish to be represented in the fossil record, you'd have to die near a stream and be washed out to some lake before your corpse either decays or gets consumed.
"Life" does get easier, because once you sink to the bottom of that lake, your bones are now as snug as a bug in a rug. Though your flesh will decompose, your bones will become buried by sediment carried into that lake by streams that empty into it.
The sediment will gradually become turned into rock, with your bones inside of it; they may be re-mineralized by water flowing through it with dissolved minerals.
But for come curious paleoanthropologist to find them, your rocky tomb will have to become lifted up by geological forces, where it can erode away, eventually revealing your bones.