musket = evasive answer.
have you read the report of mary swittzer's discovery steve?
she is an evolutionist herself, and could'nt believe it .she was not ,at first prepared to accept ,and i'm sure she was aware of the other preservations you mentioned.
and just stating something is 8,000 yr old ,don't prove it is.
and inferring that the interpretation of dating methods is always right ,don't prove it either.
my point remains - such soft tissue as found in dino bone was not expected - even in the most favourable conditions.