Cover Fossil is a fossil in Pokémon Black and White that can be resurrected to Tirtouga.
It looks like a shell of a tortoise. The player can get the Cover Fossil, or the Plume Fossil, at Relic Castle. A female Backpacker will have them, and says that she can't hold them all, giving you one generously.
This article is a stub!
Please help the Pokémon Wiki by adding more info.