They threw the results out. This is common practice. They then use potassium argon, or other methods, and date the fossils again. They do this many times, using a different dating method each time. So they start with the assumption that dinosaurs lived millions of years ago, then manipulate the results until they agree with their conclusion.
Unbiased science changes the theory to support the facts.
They should not change the facts to fit the theory. Not millions like evolutionists claim I have documentation of a bone that was sent to The University of Arizona to be carbon dated. We didn't tell them that the bones they were dating were dinosaur bones. The result was sample B at 16,120 years. The Allosaurus dinosaur was supposed to be around 140,000,000 years.