organisms
see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Domain eukaryotes
see Domain Eukaryota Chatton, 1925
amoeboid protists
Class Acantharea Haeckel, 1881
Order Symphyacanthida Schewiakoff, 1926
1 Family Amphilithidae orth. inval.
see Family Amphilithiidae Haeckel, 1887
2 Family Astrolithidae Haeckel, 1887
3 Family Pseudolithidae Schewiakoff, 1926