Pokémon #566 in the National PokéDex, a dual type Rock/Flying Fossil Pokémon.
Archen is a small, bipedal creature with mixed reptilian and avian traits. Its large, red head is covered in discernible scales, and its neck has blue and red feathers. Its body is covered in untidy, sallow feathers, and it has blue, clawed wings that cannot be used for flight. It has short, thin legs, and a twig-like tail that bears a diamond-shaped blue feather. It has wide white eyes with black pupils and no irises.
It is revided from a Plume Fossil and evolves into Archeops.
Japanese Name: Archen