Those dinosaur bones have been fossilized, meaning that the original calcium phosphate has been replaced with minerals like calcium carbonate and silica.
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That means it changes at a known and predictable rate into another element, 14-N, in a process called radioactive decay.
The ratio of those three carbon isotopes are fixed when the organism dies, and the ratio of 14-C to 14-N increases with time.
Dates up to this point in history are well documented for C14 calibration.
For object over 4,000 years old the method becomes very unreliable for the following reason: Objects older then 4,000 years run into a problem in that there are few if any known artifacts to be used as the standard.
by Helen Fryman Question: What about radiocarbon dating? Response: I asked several people who know about this field. (1.) C14 dating is very accurate for wood used up to about 4,000 years ago.
This is only because it is well calibrated with objects of known age.I read online about information of how dinosaurs dont have carbon in the bones at all, or it does, and all this bull online. Also, when I read online, theres always these two sides, evolutionist and christians. I just want to know if and how dinosaurs are tested to get their age.Sounds like you are a high school student trying to distinguish fact (science) from fiction (religion). All living things contain carbon atoms when they are alive.The lecturer talked at length about how inaccurate C14 Dating is (as 'corrected' by dendrochronology).The methodology is quite accurate, but dendrochronology supposedly shows that the C14 dates go off because of changes in the equilibrium over time, and that the older the dates the larger the error.Therefore 14-C can be used for radiometric dating if certain conditions are met.