Cryptoendoliths extremophiles live in very frigid areas such as Antarctica. They generally adapt to the cold environment. However, they dont need to live in the cold, it just turned out
Cryptoendoliths have a circle like base, and a rod like sturcture. Since they live in rocks, they are warm and wet.
Cryptoendoliths would live on any planet with enough sunlight, rocks and water to keep the Cryptoendoliths warm and wet like they should be