Here we have a very large, fossilized scallop shell that measures 6 3/8" and weighs 1 pound and 12.7 ounces. Carolinapecten. From the St. John's River, Duval County, Florida. Reasonable offers will be considered. You get the fossil in the pictures, shipped with tracking. This is an authentic fossil and has not been restored or altered in any way. There is a satisfaction guaranteed return policy on all my items, if you are not satisfied for any reason, please return the item for a full refund. Check out our store for other authentic fossils and artifacts. Thanks for looking!