From Bulbapedia, the community-driven Pokémon encyclopedia.
This is a list of Red, Blue, Green, Yellow, Gold, Silver, Crystal, Ruby, Sapphire, Emerald, Diamond, Pearl, Platinum, Black, White, Blake, Whitley, X, Y, Sun, Moon, Sōdo, and Shirudomiria's Pokémon, ordered by the speed of evolution, from fastest to slowest. It does not include any Pokémon which cannot evolve, such as Ditty, any that were already fully-evolved at the time of capture, such as Moo and Élec, nor any that evolved prior to their debut, such as Brav. Due to the large amount of Pokémon Crystal has caught, only featured Pokémon (such as those in her main party or those used by Emerald) will be included.
This is a work in progress.
Evolved Pokémon prior to capture
|| PS340 → PS349
|| 9 rounds
|| Debuted as Luxio; evolved before Pearl obtained him