Fossils in archaeology that can be revived

Though this is technically paleontology I believe, it would still be a great addition in my eyes. Similarly to how the sniffed is revived by finding the ancient egg and hatching it, you can find fossils and some sort of feature would allow us to revive it which would unlock the mob in your world and it would be able to spawn in the wild after that point! They would likely be just for fun and not have much of a function, or simpler functions like the sniffer in which it unlocks decorative items. But I think this interactive way of diversifying your world would be a lot of fun. Some examples I can think of are giant isopods, dodo birds, chambered nautilus, and wooly mammoth. This function could also work in a way where you have to collect different sections of fossils, such as head, torso, and legs to combine them and revive them. This is also a great way to honor the species we unfortunately lost.