Protist genera

Malawimonas is a genus of unicellular, heterotrophic flagellates with uncertain phylogenetic affinities. They have variably been assigned to Excavata and Loukozoa. Recent studies suggest they may be closely related to the Podiata.

Capsaspora is a monotypic genus of protists containing the single species Capsaspora owczarzaki. C. owczarzaki is a single-celled eukaryote that occupies a key phylogenetic position in our understanding of the origin of animal multicellularity, as one of the closest unicellular relatives to animals. It is, together with Ministeria vibrans, a member of the Filasterea clade. This amoeboid protist has been pivotal to unraveling the nature of the unicellular ancestor of animals, which has been proved to be much more complex than previously thought.

Breviata anathema is a single-celled flagellate amoeboid eukaryote, previously studied under the name Mastigamoeba invertens. The cell lacks mitochondria, much like the pelobionts to which the species was previously assigned, but has remnant mitochondrial genes, and possesses an organelle believed to be a modified anaerobic mitochondrion, similar to the mitosomes and hydrogenosomes found in other eukaryotes that live in low-oxygen environments.

Ancyromonas is a genus of basal eukaryote consisting of heterotrophic flagellates.

Apusomonas is a genus of Apusozoa erected by A. G. Aléxéieff in 1924.

Ancoracysta is a genus of eukaryotic microbes containing the species Ancoracysta twista, a predatory protist.