One side and the venter of a very large adult internal mould with nearly a whorl of body chamber showing uncoiling of the umbilical seam. The inner whorls of the phragmocone are crushed but show the ribbing well and the last half whorl of phragmocone shows the sutures well including the last. Over the last whorl the rib density decreases very suddenly and then increases towards the end of the body chamber. From France.
Size: 270mm diameter
Size: 270mm diameter