''Phalansterium'' is a genus of single-celled
flagellated
A flagellum (; ) is a hairlike appendage that protrudes from certain plant and animal sperm cells, and from a wide range of microorganisms to provide motility. Many protists with flagella are termed as flagellates.
A microorganism may have fro ...
organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores.
''Phalansterium'' is hard to classify; it has a distinctive
ultrastructure
Ultrastructure (or ultra-structure) is the architecture of cells and biomaterials that is visible at higher magnifications than found on a standard optical light microscope. This traditionally meant the resolution and magnification range of a co ...
of its
pericentriolar material. Molecular evidence places it in the
Amoebozoa
Amoebozoa is a major taxonomic group containing about 2,400 described species of amoeboid protists, often possessing blunt, fingerlike, lobose pseudopods and tubular mitochondrial cristae. In traditional and currently no longer supported classi ...
.
It has been suggested that it is similar to the ancestral eukaryote.
Species
Genus ''Phalansterium''
Cienkowsky 1870
* Species ''
Phalansterium arcticum
''Phalansterium'' is a genus of single-celled flagellates, flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores.
''Phalansterium'' is hard to classify; it has a distinctive ultrastructure ...
''
Shmakova, Karpov & Smirnov 2018
* Species ''
Phalansterium consociatum
''Phalansterium'' is a genus of single-celled flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores.
''Phalansterium'' is hard to classify; it has a distinctive ultrastructure of its perice ...
''
(Fresenius 1858) Cienkowsky 1870
* Species ''
Phalansterium digitatum
''Phalansterium'' is a genus of single-celled flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores.
''Phalansterium'' is hard to classify; it has a distinctive ultrastructure of its perice ...
''
Stein 1878
* Species ''
Phalansterium filosum
''Phalansterium'' is a genus of single-celled flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores.
''Phalansterium'' is hard to classify; it has a distinctive ultrastructure of its perice ...
''
Cavalier-Smith & Chao 2011
* Species ''
Phalansterium intestinum
''Phalansterium'' is a genus of single-celled flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores.
''Phalansterium'' is hard to classify; it has a distinctive ultrastructure of its perice ...
''
Cienkowsky 1870
* Species ''
Phalansterium solitarium
''Phalansterium'' is a genus of single-celled flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores.
''Phalansterium'' is hard to classify; it has a distinctive ultrastructure of its perice ...
''
Sandon 1924
References
Amoebozoa genera
{{Amoebozoa-stub