Dating methods are not all that dependable and can be manipulated to agree with index fossils. ~ creationontheweb.com

All dating methods are based on circular reasoning.

... paleoanthropologists could not believe such a modern looking skull could be that ancient. Again, the assumption of evolution motivated this concern. To keep the evolutionary story consistent, the volcanic tuff associated with the skull was redated. Lo and behold, 'redating' by various methods again came up with another 'consistent' date of about 1.6 million years. Finally, they arrived at a date they could all agree with. During this 10-year controversy, it was revealed that some dates came out as old as 230 million years. What does this say about the independence of these dating methods? ~ creationontheweb.com

"If certain assumptions are made about it [radiometric dating], then, it can yield a date which could be called the apparent age. Whether or not the apparent age is the true age depends completely on the validity of the assumptions."  ~ famous evolutionist, Eugenie Scott

“In view of this fact, the highly speculative nature of all methods of geochronometry becomes apparent when one realizes that not one of the above assumptions is valid! None are provable, or testable, or even reasonable.” ~ famous evolutionist, Eugenie Scott

"Since there is no way in which these assumptions can be tested, there is no sure way (except by divine revelation) of knowing the true age of any geological formation." ~ famous evolutionist, Eugenie Scott

"We must remember that the past is not open to the normal processes of experimental science, that is, repeatable experiments in the present… A scientist cannot do experiments on events that happened in the past… Scientists do not measure the age of rocks, they measure isotope concentrations… [and] the age is calculated using assumptions about the past that cannot be proven." ~ famous evolutionist, Eugenie Scott

The essential factors required to calculate an age include 1) measuring the element concentrations, 2) certainty of element stability over long periods of time, 3) knowledge of the half-life – how long it takes for the initial (parent) radioactive substance to be reduced to the daughter element by 50% (half-life), and 4) initial concentration of the parent and daughter radioactive elements, i.e., the initial concentrations on Earth’s first day. Science can measure the concentration of elements, but science can only speculate on assumptions regarding the element stability, half-life, and the original concentration at the beginning. . . . What is the chance of verify these assumptions? The chance does not exceed zero. ~ https://www.darwinthenandnow.com/2013/11/the-hoodwinking-art-of-radiometric-dating/#more-5715