Prestoric caves/ fossils and ancient mobs.

I would like if in minecraft there was fossils in deserts and fossil filled caves. The fossils would have bone fragments around them and in suspicious sand/gravel. Once you find a fragment or egg you have to take it to 1 of 2 new structures: the extractor and the incubator. You take fragments to the extractor so you can extract DNA of ancient creatures and the incubator is where you take the eggs to be incubated. Once you incubate or extract an egg or fossil you either take the eggs to a brewing stand, enter the dna capsule and eggs then the brewing stand will infuse the egg and dna to make an ancient egg. If it was a egg the egg will be ready to hatch and will hatch into: the Snubble ( an ancient sniffer) which can dig up older and more seeds than the sniffer can like the bramble ( an ancient huge berry bush). The dune rider ( an ancient beast that romes the desert which you can tame to let you ride it). The dusk hopper ( a giant bunny that only comes out at night that can find new crops like corn or radish). The flying Terror ( a pterodactyl that is hostile until you tame it with giant sun flash). Giant sun flash ( a big fish that is the flying terror’s favourite food). And that is the end of the list of possible examples. And flora like the Pepto tree ( a tree with green bark and planks). And the spotted fern( it is poisonous and will give you poison).All flora will randomly spawn around the world once discovered. Fauna won’t except fossil caves and they roam at night.