Protostelium

Protostelium
Protostelium mycophaga sporocarps
Scientific classification
Domain: Eukaryota
Phylum: Amoebozoa
Class: Variosea
Order: Protosteliida
Olive & Stoianovitch 1966, emend. Shadwick & Spiegel in Adl et al. 2012
Family: Protosteliidae
Olive & Stoianovitch 1966
Genus: Protostelium
Olive & Stoianovitch 1960 emend. Spiegel et al. 2017
Type species
Protostelium mycophaga
Olive & Stoianovitch 1960
Synonyms
Planoprotostelium
Olive & Stoianovitch 1971

Protostelium is a genus of protosteloid amoebozoans, i.e., amoebae capable of forming simple fruiting bodies composed of a stalk and a ball of spores. It contains numerous species, including P. aurantium, which was initially classified in a different genus Planoprotostelium. Phylogenetic analyses revealed that Planoprotostelium branches from within the genus Protostelium, making them synonyms.

The genus is placed in the family Protosteliidae within the monotypic order Protosteliida, which is part of a larger group of amoebozoans known as Variosea.