They have found elephant fossils that are allegedly millions of years old, based on some dating method. I don't know if mineralization is even used as a dating method. Often evolutionary assumptions determine the date that is assigned to a fossil so it becomes circular.
They found these muscle tissues that shouldn't be there. Are those people famous?
No, it is not circular, it is radiometric and can be measured using different isotopes that all give the same answer, but on different scales of predictable radioatomic decay.
They did not find muscle tissue, they found structures; and for that they are very famous... among paleontologists and also creationists, Dr Schweitzer would be a ROCK STAR to creationists, but she keeps saying that the fossils were just amazingly preserved fossils from fifty million years ago instead of making incorrect grandiose claims.