Kingdom [Animalia] Linnaeus, 1758 - animals Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818 Class Ciliata see [unranked] ciliates Order Spirotricha 1 Suborder Heterotricha Stein, 1859 2 Suborder Hypotricha Stein, 1859 3 Suborder Oligotricha Bütschli, 1889 4 Suborder Entodiniomorpha