Opalozoa

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Opalozoa
Opalina ranarum, an opalozoan
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Stramenopiles
Phylum: Bigyra
Subphylum: Opalozoa
Cavalier-Smith, 1991 stat. nov. 2006[1]
Infraphyla and classes[1]

Opalozoa is a subphylum of

saprotrophs in the gut of vertebrate animals.[3]

Taxonomy

History: phylum Opalozoa

In 1993 the name “Opalozoa” referred to a group of protists that was very different from what it is now. It was a

Modern classification

The modern taxonomy of Opalozoa, down to order level, is as follows:[1]

  • Subphylum Opalozoa Cavalier-Smith, 1991 stat. nov. 2006 emend. 2018
    • Infraphylum
      Bikosia
      Cavalier-Smith, 2013
      • Class
        Bicosoecea
        Cavalier-Smith, 1986
        • Subclass Bicosidia Cavalier-Smith, 2006 orth. emend.
        • Subclass
          Rictidia
          Cavalier-Smith, 2013
          • Order
            Rictida
            Cavalier-Smith, 2013
    • Infraphylum Placidozoa Cavalier-Smith, 2013
      • Superclass
        paraphyletic
        ]
        • Class Placididea Moriya, Nakayama & Inouye, 2002
          • Order Placidida Moriya, Nakayama & Inouye, 2002 [=Placidae Cavalier-Smith, 2006]
        • Class
          Nanomonadea
          Cavalier-Smith, 2013
        • Class Opalomonadea Cavalier-Smith, 2013
      • Superclass Opalinata Wenyon, 1926 emend. Cavalier-Smith, 1996 stat. nov. 2006
        • Class
          Opalinea
          Wenyon, 1926 stat. nov. Cavalier-Smith, 1993 emend. 2013
          • Order
            Proteromonadida
            Grassé, 1952 emend. Cavalier-Smith, 1993
          • Order
            Opalinida
            Poche, 1913 stat. nov. Hall, 1953 emend. Cavalier-Smith
        • Class
          Blastocystea
          Zierdt et al., 1967
          • Order
            Blastocystida
            Zierdt, 1978
  • Opalozoa incertae sedis:

Phylogeny

The cladogram below shows the internal relationships of Opalozoa.[1]

Opalozoa
Placidozoa
Opalinata

Opalinea

Blastocystea

Opalomonadea  

Nanomonadea

Placididea

Bikosea

References