there are none only grond type ones.
i think tyranitar is the best dark pokemon, then honchkrow and then umbreon.
You can't get the Pokemon in Pokemon Platinum.
Tyranitar is #248 in the national pokedex, and it is a Rock-Dark type Pokemon.
All you have to do is steal a tyranitar from a trainer that has one using the thief cheat or find a pupitar and evolve it.
dark type Pokemon are said to be created after team rocket. some dark types are umbreon and tyranitar
Infernape Golduck Rypherior Sceptile Tyranitar Electivire
First it's larvitar then it's pupitar and then it's Tyranitar
there arent dark Pokemon in any Pokemon game.
Larvitar evolves into Pupitar at level 30, then finally into Tyranitar at level 55.
Darkrai.
you can't catch a tyranitar but you can catch its pre evolved forms. in pokermon Black/white you can catch a tyranitar but its extremely rare or you can catch pupitar on route 15 you can catch larvitar in: Pokemon fire red/ leaf green in the sevault canyon gold/silver/crystal on mount silver soul silver/heart gold in safarizone/mount silver diamond route 207 with Pokeradar platinum route 206
It is shiny, you are really lucky to get one of those, one in like 8000 chance