Peridiniopsis quadridens (Stein) Bourrelly Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Protozoa phylum Dinophyta class Dinophyceae order Peridiniales family Peridiniaceae genus Peridiniopsis species Peridiniopsis quadridens Name Homonyms Peridiniopsis quadridens (Stein) Bourrelly, 1968