Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade natates Cavalier-Smith, 2021
Clade photaria Cavalier-Smith, 2021
Clade eucorta Cavalier-Smith, 2021
Superkingdom Corticata Lankester, 1878 - corticates
Kingdom Chromista Caval.-Sm. (1981) - chromists
Subkingdom Hacrobia Okamoto, Chantangsi, Horák, Leander & Keeling, 2009
Phylum Haptista Cavalier-Smith, 2003
Subphylum Haptophytinaᵀ Caval.-Sm. (2015)
Class Coccolithophyceae Rothm. (1951)
"Nannoliths"
Genus †Prinsiosphaera Jafar (1983), incertae sedis
01 Family Braarudosphaeraceae Deflandre (1947)
02 Family †Eoconusphaeraceae Kristan-Tellmann (1988)
03 Family †Goniolithaceae Deflandre (1957)
04 Family †Lapideacassaceae Bown & Young (1997)
05 Family †Microrhabdulaceae Deflandre (1963)
06 Family †Nannoconaceae Deflandre (1959)
07 Family †Polycyclolithaceae Forchheimer (1972)
08 Family †Schizosphaerellaceae Deflandre (1959)
09 Order †Discoasterales Hay (1977)
10 Family †Lithostromationaceae Deflandre (1959)
11 Family Ceratolithaceae Norris (1965)
12 Family †Triquetrorhabdulaceae Lipps (1969)