Subclass Radiolaria Müller, 1858 see Phylum Actinopoda Calkins, 1902 Order Polycystina Ehrenberg, 1838 see Class Polycystina Ehrenberg, 1838 Suborder Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847 Family Plagoniidae Haeckel, 1881 Genus Antarctissa Petrushevskaya, 1967 Antarctissa denticulata (Ehrenberg, 1844)