I don't recall. DNA from creatures that old must be rare indeed, if any still exists. The Nature article (at post 22) says they "uncovered a skull, pelvis and limb bones ... ." That's probably enough for an expert to make a good classification. If more turn up, we'll learn if this initial classification is correct. Just relax. These things can take a bit of time. The foundations of science don't rest on this one fossil.
OK, I'll ask questions as news comes. Sound advice I think I'll take.