Chromalveolata Phylum Dinoflagellata (or Dinozoa or Pyrrophyta)
1,000 species (mostly marine)
Most are unicellular and motile
Cellulose plates or no cell wall
Two flagella, one wrapped around the cell
Chlorophyll a and b and fucoxanthin (a brown pigment)
Chloroplast probably from red algae (secondary endosymbiosis)