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Discosea Cavalier-Smith et al. 2004, sensu Smirnov et al. 2011
Flattened naked amoebae, never producing tubular, subcylindrical pseudopodia and never altering the locomotive form to the tubular, subcylindrical one; cytoplasmic flow polyaxial or without a pronounced axis; ciliated stages unknown; several taxa sporocarpic.

Flabellinia Smirnov et al., 2005
Flattened generally fan-shaped, oblong or irregularly triangular cells, never with pointed subpseudopodia.

Centramoebia Cavalier-Smith et al. 2016
MTOC located near the dictyosome; several taxa with protosteloid sporocarpy. The least inclusive clade containing Pellita catalonica, Gocevia fonbrunei, Endostelium zonatum, Acanthamoeba castellanii.

The diagrams below show morphotypes of locomotive forms of Discosea:

Smirnov et al. (2011), A Revised Classification of Naked Lobose Amoebae
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