No, I wouldn't call it finely dissected foliage b/c for that the leaves would be much narrower and the normal indentations along the leaf margin more numerous and deep.
And there's the expected difference in leaf forms at the top of the plant as opposed to the bottom.
The more mature leaves at the top have that mitten look one can see with some PL varieties so I wonder if GD crossed with anything PL in your garden. Were you growing any PL's the summer of the cross?
Summer of the Cross......sounds like a good book title to me.
