>>11260275Dating/determining bivalve fossils is relatively easy. Just try to find a book/website about fossils in your area and see which bivalve descriptions match your fossils. Pay special attention to characteristics you can measure/describe accurately like the number of ribs, the size of the shell, the marks the muscles of the bivalve left on the inside. I like to draw a detailed sketch of the specimen to make sure I didn't miss anything.
>>11260320Bivalves are pretty rad though
