Capsaspora

Capsaspora
Scientific classification
Domain: Eukaryota
Class: Filasterea
Order: Ministeriida
Family: Capsasporidae
Cavalier-Smith, 2008
Genus: Capsaspora
Hertel, Bayne & Loker 2002
Species:
C. owczarzaki
Binomial name
Capsaspora owczarzaki
Hertel, Bayne & Loker 2002

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.