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 Cavalier-Smith 2006] • 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 Zierdt 1978; Blastocystina Zierdt 1978] • 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 Caval.-Sm. 1997] • 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 Cavalier-Smith 1993] • 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 ==References==