These Fossils Are Found All Over, but What Made Them Was a Mystery

These Fossils Are Found All Over, but What Made Them Was a Mystery Scientists in Brazil identified marine worms that made at least some trace fossil burrows called Bifungites. Bifungites turn up in Brazil, the United States, Canada, India and African and European countries. The creatures that made these fossilized burrows have been a mystery. If you know where to look, you can find dumbbell-shaped fossils in rock outcrops all over the world: in Brazil, the United States, Canada, India and African and European countries. They are called Bifungites, and...