From Bulbapedia, the community-driven Pokémon encyclopedia.
The Cover Fossil (Japanese: ふたのカセキ Cover Fossil) and Plume Fossil (Japanese: はねのカセキ Plume Fossil) are Fossils which can be regenerated into Tirtouga and Archen, respectively.
In the games
In Pokémon Black and White, a Backpacker on the first floor of Relic Castle has found both of the Fossils, but claims they are too heavy and offers one of the Fossils for the player to keep. The Fossil that is not chosen is kept by the Backpacker and cannot be obtained in-game.
If brought to the Nacrene Museum, the Cover and Plume Fossils can be regenerated into Tirtouga and Archen, respectively.
In Pokémon Black 2 and White 2, the former Gym Leader Lenora will give the player either Fossil when they reach Nacrene City later on in the game after defeating the Elite Four. Just like before, the player must choose one of the two Fossils and then speak to the researcher standing alone at the front desk of the museum to revive it.
Rocks purchased in Antique Shops of Black 2 and White 2's Join Avenue may contain Cover or Plume Fossils.
In X and Y, both can be found in the smashable rocks in Glittering Cave.
In Omega Ruby and Alpha Sapphire, they can be found randomly through Rock Smash in different Mirage spots. However the Plume Fossil is exclusive to Omega Ruby and the Cover Fossil is exclusive to Alpha Sapphire. They can be brought to the Devon Corporation in Rustboro City to regenerate them into Archen and Tirtouga, respectively.
|| A fossil of an ancient Pokémon that lived in the sea in ancient times. It appears to be part of its back.
|| A fossil from a prehistoric Pokémon that once lived in the sea. It appears as though it could be part of its back.
|| A fossil of an ancient Pokémon that flew in the sky in ancient times. It appears to be part of its wing.
|| A fossil from a prehistoric Pokémon that once lived in the sky. It looks as if it could come from part of its wing.
In the anime
A Plume Fossil in the anime
A Cover Fossil in the anime
A Plume Fossil appeared in Archeops In The Modern World!. Prior to the episode, Lenora gave a Plume Fossil to Professor Juniper and Fennel. They successfully resurrected a female Archen from the Fossil using Musharna's dream energy. With the help of Ash and his Tranquill, Archen learned how to fly and then evolved into Archeops.
A Cover Fossil appeared in A Restoration Confrontation! Part 1. It was found by Ferris and later stolen by Team Rocket, who—by using the stolen data from Juniper and Fennel's fossil resurrection machine and the stones stolen from the Chargestone Cave—managed to revive it into a Tirtouga. It evolved into a Carracosta in the next episode and was eventually returned back to its own time through a time gate in Twist Mountain.
In the TCG
The following is a list of cards named Cover Fossil or Plume Fossil.
This is the artwork of the Fossils as they appear on the Pokémon Global Link.
| Cover Fossil
|| Plume Fossil
- While the item description for the Plume Fossil states the Fossil came from a "Pokémon that flew in the sky", the Backpacker who gives the Fossils mentions that the Plume Fossil is from a Pokémon that lived in an ancient forest, but could not fly. Considering what is known about the Archaeopteryx, this may be intentional to some degree.
In other languages