After Parker, 1982
<==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