“Horner said he plans to send crews to Mongolia and Montana this summer to look for other fossils that are “exquisitely well-preserved.” He noted that the protein found in B. rex was doubly protected. Not only was it hidden inside a dense, large femur bone, but the bone was 60 feet below the top of the outcrop and under 1,000 cubic yards of rock. That protection kept the fossils from being contaminated by bacteria, the atmosphere or modern ground water.”
As I said, englobement. And no question in the article about Brex’s age which was placed at 68 mill.
Still more questions to be answered, and it wouldn’t matter how well it is protected, doesn’t soft tissue degrade rather easily unless artificially (man-made) preserved in a lab?
Though I will look into englobement further, the processes involved. (Not tonight, tomorrow sometime.).