Protococcidiorida is an order of alveolates. There are 11 species of Protococcidiorida, in 9 genera and 2 families. It includes groups like Grelliidae and Eleutheroschizonidae.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)