Nucleariids

The nucleariids, or nucleariid amoebae, are a group of amoebae that comprise the sister clade of the fungi. Together, they form the clade Holomycota. They are aquatic organisms found in freshwater and marine habitats, as well as in faeces. They are free-living phagotrophic predators that mostly consume algae and bacteria.

Nuclearia is a genus of nucleariid amoebae with filose pseudopodia and discoid mitochondrial cristae.

Rabdiophrys is a genus of eukaryotes of unclear placement. As molecular data is unavailable (as of 2019), it has been placed by morphology in Nucleariida or Rhizaria (Chao and Cavalier-Smith).