Radiocarbon dating is not useful for most fossils
Plants and animals assimilate carbon 14 from carbon dioxide throughout their lifetimes.
When they die, they stop exchanging carbon with the biosphere and their carbon 14 content then starts to decrease at a rate determined by the law of radioactive decay.
Perhaps no concept in science is as misunderstood as "carbon dating." Almost everyone thinks carbon dating speaks of millions or billions of years.
But, carbon dating can't be used to date either rocks or fossils.
Footprints, flowers, even droppings; all of these things can be turned into fossils under the right conditions.