Uniciliatida

Nanomonadea is a class of biciliate phagotrophic, non-photosynthetic free-living opalozoans, coontaining the sole order Uniciliatida. This monophyletic group previously known as clade MAST-3 is characterized by a single hairless posterior cilium and absence of an anterior cilium.

Phylogeny
The cladogram below shows the relationships between Nanomonadea and the rest of Opalozoans.

Taxonomy
The taxonomy of Nanomonadea is as follows:
 * Subphylum Opalozoa Cavalier-Smith 1999 stat. nov. 2006
 * Infraphylum Placidozoa Cavalier-Smith 2013
 * Superclass Wobblata Cavalier-Smith 2006 supercl. nov. 2013 (paraphyletic)
 * Class Nanomonadea Cavalier-Smith 2013
 * Order Uniciliatida Cavalier-Smith 2013
 * Family Solenicolidae Cavalier-Smith 2013 – Solenicola
 * Family Incisomonadidae Cavalier-Smith 2013 – Incisomonas