Old art of a prehistoric draconequus I thought up. I imagine he was a bit more brutal and primal in his chaos, making ice that burned, thunderstorms that sucked up water from the land, light breezes that would blow people away, things like that. I suppose he was finally brought down and destroyed at some point, and his bones are now found in a Canterlot Museum. Archeologists remain unaware all the strange jumbled collection bones come from the same creature, and instead assume they found the remains of an old refuse pit. If they were to ever realize their mistake and reassemble him, well, Equestria may have another disaster to deal with.