<==o APICOMPLEXA
`--o PERKINSEA [Sporozoa]
|--o PIROPLASMIDA [Piroplasmia:]
| |-- Anthemosomatidae
| |-- Babesiidae
| |-- Theileriidae
| `-- Dactylostomatidae
|--o GRAGARINIA
| |--o ARCHIGREGARINIDA
| | |-- Selenidioididae
| | `-- Exoschihizonidae
| |--o EUGREGARINIDA
| | |-- Siedleckiidae [Blastogregarinina]
| | |--o ACEPHALINA
| | | |-- Selenidiidae
| | | |-- Lecudinidae
| | | |-- Urosporidae
| | | |-- Aikinetocystidae
| | | |-- Monocystidae
| | | |-- Diplocystidae
| | | |-- Allantocystidae
| | | |-- Schaudinnellidae
| | | |-- Ganymenidae
| | | `-- Enterocystidae
| | `--o CEPHALINA
| | |-- Porosporidae [POROSPOROIDEA]
| | |-- Fusionidae [FUSIONOIDEA]
| | |--o GREGARINOIDEA
| | | |-- Cephaloidophoridae
| | | |-- Cephalolobidae
| | | |-- Uradiophoridae
| | | |-- Gregarinidae
| | | |-- Metameridae
| | | |-- Didymophyidae
| | | `-- Hirmocystidae
| | `--o STENOPHOROIDEA
| | |-- Stenophoridae
| | |-- Leidyanidae
| | |-- Cnemidosporidae
| | |-- Monoductidae
| | |-- Sphaerocystidae
| | |-- Trichorhynchidae
| | |-- Dactylophoridae
| | |-- Stylocephalidae
| | |-- Actinocephalidae
| | |-- Acutidae
| | `-- Monoicidae
| `--o NEOGREGARINIDA
| |-- Lipotrophidae
| |-- Gigaductidae
| |-- Ophryocystidae
| |-- Schizocystidae
| |-- Caulleryellidae
| `-- Syncystidae
`--o COCCIDIA
|-- Rhytidocystidae [Agamococciida]
|--o PROTOCOCCIIDA
| |-- Eleutheroschizonidae
| `-- Grelliidae
`--o EUCOCCIIDA
|-- Plasmodiidae [Haemosporina]
|--o ADELEINA
| |-- Adeleidae
| |-- Legerellidae
| |-- Haemogregarinidae
| `-- Klossiellidae
`--o EIMERIINA
|-- Spirocystidae
|-- Selenococciidae
|-- Dobelliidae
|-- Aggregatidae
|-- Caryotrophidae
|-- Cryptosporidiidae
|-- Pfeifferinellidae
|-- Lankesterellidae
|-- Eimeriidae
`-- Sarcocystidae
Reference(s):
Parker, S. P. (ed.), 1982: Synopsis and classification of living organisms. Vols. 1 & 2
–McGrew-Hill Book Company
