Also. None of the dinosaurs in Crystal Palace Park have any of their bones misplaced (in fact there is only one example of mismatched bones in UK history, and it was a hoax). They are just incorrect interpretations of small amounts of bone.
1. i'm sure she didn't get that machine legit.
2. note how I said she was a "scientist" (notice the quotation marks)
furthermore, I can't imagine what she would do to previous gen fossil pokemon, because she's not a scientist. As far as I know, she just wants to play god (or arceus in this case)
in my opinion, it's probably better to let these fossil pokemon stay dead than revive them as these abominations
(at least until Game Freak gives us a way to revive them with their real bodies instead of what we see here)