living organisms
see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Superkingdom Eukaryotae
see Domain Eukaryota Chatton, 1925
Kingdom Plantae Haeckel (1866) - plants
Subkingdom Thallobionta
Division Chromophycota
see Phylum Chromophyta T.A.Chr. (1962), nom. nud.
Class Prymnesiophyceae D.J. Hibberd (1976)
see Class Coccolithophyceae Rothm. (1951)
Order Coccosphaerales Haeckel (1894)
Family Halopappaceae Kamptner (1928)
1 Genus Calciopappus Gaarder & Ramsfjell (1954)
2 Genus Halopappus Lohmann (1912)
3 Genus Michaelsarsia Gran, in J. Murray & Hjort (1912)
4 Genus Ophiaster Gran, in J. Murray & Hjort (1912)