You definitely couldn’t..The news last year actually had idiots is Spain that tried to claim they could get DNA from fossilized material. The crystalization process destroys most of the information of the cell so fossilized because the size of the crystals are typically in fractions of a millimeter to fractions of an inch. DNA is in nanometers and the crystalization process destroys any DNA, RNA, and other small structures present..
Another major problem with the idea of fossils that old is atomic motion. Even solid objects would deform over time under gravity. Most fossils simply are not deformed enough to be a million years old, much less dozens or hundreds. Plus the obvious problem with radioisotopic dating when you assume no daughter products as is normally done..One wonders if scientists who make illogical assumptions like that realize that they will be laughed at in a hundred years or so. Science based on bad assumptions cannot be held to be science, and yet a sizeable chunk of the “science” out there only “works” if you make assumptions that contradict other established science.