INTERRAD XII （12th Meeting of the International Association of Radiolarian Paleontologists）will be held in the newly built "Nanjing Museum of Palaeontology" at Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, within walking distance from downtown Nanjing. A series of scientific sessions including plenary and special sessions, and special group meetings, in addition to pre-, post-conference and mid-conference field excursions will be organized. Social events and programs will also be arranged.