answer:Very pretty; I like it, by the way. I think you could get the thing identified from someone who knows simply from the video or some clear photos. (It might help to place a ruler next to it in a photo to give some certainty in scale.) Start at a natural history museum in your area and work outward from there if you’re not satisfied with what they tell you. My understanding, without researching this closely, is that the fossilization process takes a very long time. That is, the organism has to be immobilized in mud or something like it, and die, and then the body’s tissues are gradually replaced with minerals that precipitate out of the water or other “containing medium” (such as mud). And that process can take many years—or at least it’s assumed to—I don’t know if anyone has been able to artificially create a fossil. If you want to preserve the fossil you’ve got (assuming it is, and it sure seems to be a huge dragonfly, bigger than any that I’ve ever seen), then I’d recommend covering it with something that will prevent erosion and not trap acidic water on it, either.