 Natura - nature | | Mundus Plinius - physical world | | Naturalia - natural bodies | | Biota | | Domain Eukaryota Chatton, 1925 - eukaryotes | | Bikonta | |
"photokaryotes"
| | Chromalveolata | | Alveolata Cavalier-Smith, 1991 | | Phylum Ciliophora (Doflein, 1901) Copeland, 1956 - ciliates |  Subphylum Intramacronucleata Lynn, 1996 |  Class Spirotrichea Bütschli, 1889 | | Class Armophorea Lynn, 2004 | | Class Litostomatea Small & Lynn, 1981 | | Class Phyllopharyngea de Puytorac et al., 1974 | | Class Nassophorea Small & Lynn, 1981 | | Class Colpodea Small & Lynn, 1981 | | Class Prostomatea Schewiakoff, 1896 | | Class Plagiopylea Small & Lynn, 1985 | | Class Oligohymenophorea de Puytorac et al., 1974 - oligohymenophoreans |
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