Aerodactyl does not evolve in Pokémon GO; it has no regular evolution. Its only further form is Mega Aerodactyl , which you can get by Mega Evolving Aerodactyl with Mega Energy.

Quick facts

  • Base form: Aerodactyl.
  • Regular evolution: none.
  • Mega form: Mega Aerodactyl.

In Pokémon GO

  • The first Mega Evolution costs 200 Mega Energy.
  • After that, it costs less on later Mega Evolves.

TL;DR: Aerodactyl doesn’t evolve into another normal Pokémon in Pokémon GO; it only Mega Evolves into Mega Aerodactyl.