Activity Kathryn Taylor posted an image in the group Beach Fossils from the myFOSSIL app 4 months, 1 week ago 4 months, 1 week ago 4 months, 1 week ago I found this on a beach in San Diego about 10 years ago. Anyone have ideas as to what it is?? Mason Hintermeister replied 4 months ago Unfortunately, it is not a fossil. I think it is a piece of a phosphatic nodule, the scrapping could be from any number of things. Kathryn Taylor replied 3 months, 1 week ago Thank you!