| Planolites trace fossils from the late Precambrian portion of the Deep Spring Formation, Inyo County, California; feeding trails created by a presumed annelid-type organism. Photograph courtesy Steven Newton. |
| Planolites trace fossils from the late Precambrian portion of the Deep Spring Formation, Inyo County, California; feeding trails created by a presumed annelid-type organism. Photograph courtesy Steven Newton. |