Kingdom [Animalia] Linnaeus, 1758 - animals Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818 Class Ciliata see [unranked] ciliates 1 Order Holotricha 2 Order Peritricha Stein, 1859 3 Order Spirotricha 4 Order Chonotricha 5 Order Suctoria