What is fossil power in the game fossil fighters

I think I know what you mean... Captian Woolbeard treasure, eh? Umm... well... you get it in a treasure box and it's help to get your vivosaur's rank up(a book of raising skill and rank) and you'll probably find three treasure boxes so look for them all and find that book!!!! Good Luck! ( When you get way, way farther the battles are really tough so try to level up your vivosaurs!) HOPE THIS HELPED!!! :) ~Michi