Nice silicified ammonite Gauthiericeras sp. on matrix builded with clams (bivalvia) family Veneridae, probably Venus sp.. The ammonite shell is covered with serpulid tubeworm in addition to the bivalves. New locality - not described yet. Age - Upper Cretaceous, Turonian Locality - Morocco, Western Sahara, Smara Matrix size: 220x175x75mm Ammonite size: 190x58mm Weight: 2059 g If you have bought several items, combined shipping is possible. Please contact me.