This is a list of all Pokémon that are not available within any of the Generation 7 titles. If you want to use any of them, you'll need to transfer or trade. :
Pin en Pokemon by Generations
Pokémon First Generation Tier List - TierLists.com
Pokemon Fan Page on Twitter: "#pokemoncard Pokemon Cards first generation! http://t.co/9urw10bPxi" / Twitter
DS / DSi - Pokémon Black / White - Pokémon (1st Generation, Shiny, Front) - The Spriters Resource
List of 18 Pokémon Games in Order of Chronological Release (Core Series)
All Starters Pokemon by Generation – [Gen 1, 2, 3, 4, 5, 6, 7, 8, 9 ]