Fossils, dun dun dun.........

If by any chance you are a Phineas and Ferb fan the title will make sense, if you're not then why not?!! How have you not discovered the awesomness that is Phineas and Ferb!!
So in the spirit of the show, here are some fossils dun dun dunnnnnn, now if you will excuse me I have an inator to make and I ask you, what cha dooiinnnnn??