Problems with using carbon dating
Contamination of this kind amounting to 1 percent of the carbon in a sample 25,000 years old would make it appear to be about 1,500 years younger than its actual age.
Such contamination would, however, reduce the apparent age of a 60,000-year-old object by almost 50 percent.
It's accuracy has been verified by using C-14 to date artifacts whose age is known historically.
We proceed with the examination of the research done by Miller and his fellow researchers from the CRSEF.Dinosaurs are not dated with Carbon-14, yet some researchers have claimed that there is still Carbon-14 in the bones. Do these data indicate that a more accurate method needs to be derived?What solutions are available for increasing accuracy of the tests? From the source linked above: Carbon-14 is considered to be a highly reliable dating technique.The age that these groups claim to find is usually on the order of thousands or tens of thousands of years old.The particular example you bring up is one of the most famous such cases.
The claims are really quite spectacular, when taken at face value, and therefore should be examined thoroughly.