Senegal Exports of siliceous fossil meals (kieselguhr ), similar siliceous earths to Guinea Bissau was US$619 during 2017, according to the United Nations COMTRADE database on international trade. Senegal Exports of siliceous fossil meals (kieselguhr ), similar siliceous earths to Guinea Bissau - data, historical chart and statistics - was last updated on May of 2024.