#peridinian  flagellate with a thick test composed of plates
  supertype:  dinoflagellate  chiefly marine protozoa having two flagella; a chief constituent of plankton
  member of:  family_Peridiniidae__Peridiniidae  marine and freshwater dinoflagellates
     member of:  order_Dinoflagellata__Dinoflagellata__Cilioflagellata__order_Cilioflagellata  in some classifications considered a phylum of the kingdom Protista; in others included in the plant phylum Pyrrophyta
        member of:  class_Mastigophora__Mastigophora__Flagellata__class_Flagellata  protozoa having flagella
           member of:  phylum_Protozoa__Protozoa  in some classifications considered a superphylum or a subkingdom; comprises flagellates; ciliates; sporozoans; amoebas; foraminifers
              member of:  kingdom_Protoctista__Protoctista  in most modern classifications, replacement for the Protista; includes: Protozoa; Euglenophyta; Chlorophyta; Cryptophyta; Heterokontophyta; Rhodophyta; unicellular protists and their descendant multicellular organisms: regarded as distinct from plants and animals

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