An index fossil is a type of species that is known to have existed for only a short period of time. I'm not sure how short a period of time (in millions of years of course). But this gives Paleontologists a good marker for dating things in rock layers. Technically, what is being said is, after humanity whipes itself to extinction, millions of years of now we'd make a pretty good index fossil.
An index fossil is a type of species that is known to have existed for only a short period of time. I'm not sure how short a period of time (in millions of years of course). But this gives Paleontologists a good marker for dating things in rock layers. Technically, what is being said is, after humanity whipes itself to extinction, millions of years of now we'd make a pretty good index fossil.