Fossil faecal worm pellets., Mokomoko Inlet near Bluff. Source: Page 669 of Mossman and Force (1969) article in “NZ Journal of Geology and Geophysics” https://www.tandfonline.com/doi/pdf/10.1080/00288306.1969.10431104?fbclid=IwAR0P1wZ8H9A58-OMVDFwQwd_uOHhN3v_Bh3luE87bnDvvl275NwkcRBsArk