Peridiniales

order of protists Peridiniales (Peridiniales) is an order comprising closely related families of organisms. It contains 12 families with 101 known species. Key family groups include Amphidiniopsidaceae, Ensiculiferaceae, Glenodiniopsidaceae, Heterocapsaceae, Kryptoperidiniaceae, and Lessardiaceae. It belongs to Dinophyceae (Dinophyceae).