These were found at Red Bluff at Lake Tyers. Inspected by George Rawlings 6.2.2013.Two lumps of shell fossils. The smaller, .1, is a shell and the larger .2 is a cast of spondylus, a genus of bivalve molluscs, gasteropodes. This is in calcite.fossils shells red-bluff bivalve molluscs spondylus