Placidozoa Explained

Placidozoa is a recently defined non-photosynthetic lineage of Stramenopiles.^[1]

Phylogeny

In 2016, Philippe Silar presented the following phylogeny for the Placidozoa:^[2]

Taxonomy

Infraphylum Placidozoa Cavalier-Smith 2013

• Superclass Wobblata Cavalier-Smith 2006 stat. n. 2013 (paraphyletic)
  • Class Placididea Moriya, Nakayama & Inouye 2002
    • Order Placidida Moriya, Nakayama & Inouye 2002 [Placidae <small>Cavalier-Smith 2006</small>]
      • Family Placidiaceae Moriya, Nakayama & Inouye 2002
        • Genus Pendulomonas Tong 1997
        • Genus Placidia Moriya, Nakayama & Inouye 2002
        • Genus Wobblia Moriya, Nakayama & Inouye 2000
        • Genus Allegra Rybarski et al. 2015
  • Class Nanomonadea Cavalier-Smith 2013
    • Order Uniciliatida Cavalier-Smith 2013
      • Family Solenicolidae Cavalier- Smith 2013
        • Genus Solenicola Pavillard 1916
      • Family Incisomonadidae Cavalier-Smith & Scoble 2013
        • Genus Incisomonas Scoble & Cavalier-Smith 2013
  • Class Opalomonadea Cavalier-Smith 2013
    • Genus Barthelona Bernard, Simpson & Patterson 2000
    • Genus Quasibodo Bernard, Simpson & Patterson 2000
• Superclass Opalinata Wenyon 1926 emend. Cavalier-Smith 1996 stat. n. 2006
  • Class Blastocystea Zierdt et al. 1967 [Blastocysta <small>Zierdt 1978</small>; Blastocystina <small>Zierdt 1978</small>]
    • Order Blastocystida Zierdt 1978
      • Family Blastocystidae Jiang & He 1988 non Jaekel 1918
        • Genus Blastocystis Alexeev 1911 non Jaekel 1918
  • Class Opalinea Wenyon 1926 stat. n. Cavalier-Smith 1993 emend. Cavalier-Smith 2013
    • Order Proteromonadida Grassé 1952 emend. Cavalier-Smith 1993 [Proteromonadea <small>Caval.-Sm. 1997</small>]
      • Family Proteromonadidae Grassé 1952
        • Genus Proteromonas Kunstler 1883 [''[[Prowazekella]] Alexeieff 1912]
    • Order Opalinida Poche 1913 stat. n. Hall 1953 emend. Cavalier-Smith
      • Family Karotomorphidae Travis 1934 [Karotomorphida <small>Cavalier-Smith 1993</small>]
        • Genus Karotomorpha Travis 1934 [''[[Tetramastix]] Alexeieff 1916 non Zacharias 1898]
      • Family Opalinidae Claus 1874
        • Genus Bezzenbergia Earl 1973
        • Genus Hegneriella Earl 1971
        • Genus Cepedea Metcalf 1920
        • Genus Opalina Purkinje & Valentin 1835
        • Genus Protozelleriella Delvinquier, Markus & Passmore 1991
        • Genus Zelleriella Metcalf 1920
        • Genus Protoopalina Metcalf 1918

Notes and References

1. Cavalier-Smith . Thomas . Scoble . Josephine Margaret . Phylogeny of Heterokonta: Incisomonas marina, a uniciliate gliding opalozoan related to Solenicola (Nanomonadea), and evidence that Actinophryida evolved from raphidophytes . European Journal of Protistology . 2013 . 49 . 3 . 328–353 . 10.1016/j.ejop.2012.09.002. 23219323.
2. Silar . Philippe . Protistes Eucaryotes: Origine, Evolution et Biologie des Microbes Eucaryotes . 2016 . 1–462 . HAL Archives-ouvertes .