takayama tuberculata takayama tuberculata takayama tuberculata is a species of unarmored dinoflagellates from the genus takayama, being closely related to t. tasmanica. it was first isolated from the australian region of the southern ocean, just north of the polar front. it is medium-sized and is characterized by its long ovoid cell shape and rather long apical groove. it is considered potentially ichthyotoxic. takayama tuberculata scientific classification (unranked): sar phylum: dinoflagellata class: dinophyceae order: gymnodiniales family: kareniaceae genus: takayama species: t. tuberculata binomial name takayama tuberculatade salas, 2008