Wouldn’t that depend on the degree of melting and defirmation?
Never a geologist around when we need one. 
Nor does anyone expect bones in those layers, because there were no animals with bones for another ~500 million years. The Redwall limestone is made up of the micro fossils of sea creatures and underlies the Kaibab (kaibab, supai, temple butte, then redwall). Stromatolite are known to date back billions of years, but I’m not aware of any older than ~500 million years in the Grand Canyon (like this one).