On the matter of the fossils, their designs being so messed up was 100% intentional. I've seen plenty of people saying that they look horrible, but... yeah, that means that the design worked. Their basic concept is constructed around the idea that these creatures are complete abominations, they look messed up because they ARE messed up.
And I really like that, not only because I like the way they look, but because I think they're genuinely very unique Pokémon. We have well over 800 Pokémon at this point, yet these creatures look like nothing else. We've had a ton of cool dinosaurs and weird fishes, but it's really interesting to see a bunch of Pokémon take a completely different approach on these ideas and break the mold completely.
Also, Dracozolt is a pure boy, and I'll protect him at all costs