Think of the nucleus as a pyramid of building blocks.
Its arrival was caught on video.
He discarded the dinosaur date.
In old dinosaur bones, the material is buried under layers upon layers of sediment under high pressure.
Description: It is not because they are afraid it would show the dinosaurs lived only thousands of years ago, it is because they know the test cannot be give accurate results since the material being tested was not actually "once living" after minerals replaced the actual bone. Older dates are considered to be tentative.