Agreed, they are finding dinosaur bones with fresh bone marrow inside now, they are not very old at all.Source please.
All I've seen is reports of a flexible waxy residue after the hard minerals were dissolved away.
It didn't look all that much different from the waxes one could extract from shale oil.
I've never seen any analysis of the stuff, have you?
The one trex leg bone has yeilded blood vessels, blood cells, and meat which looks like raw hamburger and last summer they managed to sequence some of the proteins and they were nearly identical to those of a chicken, i.e. the trex was basically just a big chicken with sharp teeth. Try doing google searches on 'tyrannosaur' and 'soft tissue' or 'tyrannosaur', 'soft tissue', and 'chicken'.
