That is when the ratio of the radioactive isotopes (compared with non-radioactive) decreases, for C-14 gradually decays back into a non-radioactive form.After some time, perhaps centuries or thousands of years, a sample from an animal or plant can be tested for the ratio of the isotopes of carbon.
However, with the discovery of giant human skeletal remains ranging from 8 feet to 12 feet-tall around the world in the last few hundred years, many believe the Plot femur may have belonged to a very tall human.
This brings up a question: Can Dinosaur Bones be Carbon-14 Dated?
A better question may be this: “Can we learn anything useful from carbon dating dinosaur bones?
Dinosaur Fossils: Sedimentary Rock Dinosaur fossils, as with other fossils, are found throughout earth's sedimentary layers.
To date, approximately 95.0% of all earth's fossil remains are marine invertebrates, 4.74% are plants, 0.25% are land invertebrates (including insects), and 0.0125% are vertebrates. Moreover, 95% of all land vertebrates found consist of less than one bone. Up to as many as 1,200 dinosaur skeletons have been discovered thus far.
In 1838, William Parker Foulke found the first (nearly) complete dinosaur fossil remains in New Jersey, USA.