I caught this Shiny Ursaring in Victory Road (pkmn Gold) while grinding my pkmn. It is the very first Shiny I have encountered in a Pokémon game. Type: normal Held item: None Ursaring♀ Lv.33 Moves: Lick Ghost Fury Swipes Normal Feint Attack Dark Rest Psychic I also encountered a shiny Starly on route 201 in Pokémon Platinum. But since I don't have a pokeball that early in the game, I could do nothing but to defeat it. As of Jan 2018, this is the latest Shiny I have encountered
Was it on a cartridge version of Gold? If it's on the 3DS virtual console instead, it's probably a simple matter to get it into pokebank and get brought up to Gen 6/7. I think my first shiny might have been in my cartridge silver. For some reason I think I got a shiny Sneasel, but I can't remember if that's the case or not. Well, not including the storyline shiny Gyarados, that is. Enjoy your shinybear!
It's on a cartridge version, so I have a hard time to transfer the shiny bear. But I do make a backup of the save file.