Forgotten Pokemon - Generation I

Added evolutions only include the pokemon evolved from or evolved to, not the whole line. i.e. Dusclops would not be forgotten because it can evolve into Dusknoir in a later generation. Duskull would be forgotten as it has no new direct evolution.

Regional variants do not count as split evolutions

Blog with explanations - https://www.jetpunk.com/users/kidibu/blog/forgotten-not-pokemon-explanations