Conoidasida

Conoidasida is a class of parasitic alveolates in the phylum Apicomplexa. The class was defined in 1988 by Levine and contains two subclasses – the coccidia and the gregarines. All members of this class have a complete, hollow, truncated conoid. Gregarines tend to parasitizeinvertebrates with the mature gamonts being extracellular; the coccidia mostly infect vertebrates and have intracellular gamonts.