Description
Era: Mesozoic
W40-320 grit
Approximate Size of 1 piece: 10cm x 5cm x 1cm Approximate Weight of 1 piece: 133g
Powerful headache reducer
Approximate size of 1 pc: 25mm x 15mm x 12mm
Clam - Fossil Quality:Staff Pick Era: MesozoicOrigin: Madagascar Era: Jurassic Cretaceous Geographic Age: 150 mya Description: Bivalves have no head, and they also lack a radula. They include clams, oysters, cockles, mussels, scallops, and numerous others that live in saltwater, as well as some families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialized organs for feeding and breathing. Most bivalves bury themselves in sediment, where they