Dinophysis norvegica belongs to the Phylum Dinoflagellata, consisting of single-celled eukaryotes, and Dinophysiaceae family.
Phylum: Dinoflagellata Family: Dinophysiaceae The dinoflagellates (Greek  dinos "whirling" and Latin flagellum "whip, scourge") are single-celled eukaryotes constituting the phylum Dinoflagellata. 
