The first fossil from the mysterious Ediacarn period has been described. This is the final period before the Cambrian explosion, who's fauna is far better known because of formations like the Burgess shale. It's been known for some time something was wandering around the ocean floor during the Ediacaran, because tracks have been found. This is the first time (as far as I know) we've found a complete fossil of one of the critters that might have been doing the walking.