That's basically soft tissue recovered from inside a trex leg bone a year and a half or so ago. The thing which makes it funny is that the evo-losers are going on trying to claim that tissue is 65,000,000 years old. That's really hilarious.
I mean maybe if the bone had been encased in gold or solid diamond for 65,000,000 years, but they found the bone in sandstone, so that the claim amounts to the same thing as claiming that it hadn't rained in Montana for 65,000,000 years. What could be funnier than that?