It is resurrected from an Old Amber, and while is not known to evolve into or from any other Pokémon, it can Mega Evolve into Mega Aerodactyl using the Aerodactylite. Mega Aerodactyl has the ability Tough Claws and all of its stats are increased.
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Aerodactyl is a large, bipedal Pokémon. Its head has two vicious eyes, pointed ears and a mouth full of serrated fangs. It has light violet-gray skin over much of its body, two pale violet membranes stretched between its arms and sides. Aerodactyl has plate-like spines going down its back, leading to its strong, triangular spade-tipped tail. Its talon-like feet are capable of scooping up, and tightly clutching any prey or victim unlucky enough to have Aerodactyl swoop down upon them.
Due to the sharp appearance of Aerodactyl's fangs, it was originally throught to be a carnivore. However, the anime shows it joyfully consuming fruit. Still, its sharp fangs are very imposing, and are said to be used to easily rip out the throats of its enemies. With its impressive wings, Aerodactyl is well at home within the skies. It fearlessly sores high, letting out its high pitched cries freely. When at rest it enjoys the safety and seclusion of the mountains where it likes to nest. Aerodactyl is extant through the use of fossil revitalization, but is considered extinct in the wild.
When Mega Evolved as Mega Aerodactyl, this Pokémon becomes paler in color and gains multiple spikes all over its body: five on each wing replacing its hands, three on its tail, one large spike on its back and one on the back of each talon-like feet. It has five further spikes on its head, two replacing its pointed ears, two on the sides of its face and one on its chin, along with two black eyebrow-like sections above its eyes. It also has three dark marks on its chest, two small marks and a longer mark between the other two.