Parent taxon: Protozoa according to Hall 2000
See also Bertels 1970, Loeblich and Tappan 1961, Pessagno 1967 and Squires 1984
Sister taxa: Biciliata, Entamoebidae, Eozoa, Perispira, Sarcodina, Sarcomastigota
Subtaxa: Acanthochitina Alpenachitina Amphorachitina Ancyrochitina Angochitina Anthochitina Belonechitina Bursachitina Cingulochitina Cladochitina Clathrochitina Clavachitina Coronochitina Cyathochitina Cylindrochitina Desmochitina Earlachitina Eisenackitina Eremochitina Euconchitina Euconochitina Fungochitina Fustichitina Gotlandochitina Halochitina Hercochitina Hetcochitina Hoegisphaera Jenkinochitina Kalochitina Lagenochitina Laufeldochitina Linochitina Margachitina Muscochitina Ollachitina Parisochitina Pistillachitina Plectochitina Pogonochitina Pseudoclathrochitina Pterochitina Ramochitina Rhabdochitina Sagenachitina Salopochitina Siphonochitina Sphaerochitina Spinachitina Tanuchitina Urochitina Velatachitina