Full reference: C.A. Kofoid and O. Swezy. 1921. The free-living unarmored Dinoflagellata. Memoirs of the University of California 5:1-562
Parent taxon: Dinophyceae according to C.A. Kofoid and O. Swezy 1921
Sister taxa: Actiniscales, Actinotheca, Aiora, Algidasphaeridium, Anthatractus, Apteodinium, Arcticacysta, Aremoricanium, Belodinium, Bicarinellum, Broomea, Calcicarpinium, Calcigonellum, Calciogranellum, Calcipterellum, Calcisphaerellum, Caligodinium, Cantulodinium, Ceratocoryaceae, Chiropteridium, Cryptarchaeodinium, Cymatiogalea, Danea, Diconodinium, Dictyopyxidia, Diornatosphaera, Diplotesta, Disconodinium, Distatodinium, Dollidinium, Downiesphaeridium, Echinidinium, Eodinia, Evansia, Exochosphaeridium, Favilarnax, Galea, Gillinia, Gonyaulacales, Gymnodinium, Heliodinium, Heteraulacacysta, Heterocapsaceae, Histiophora, Horologinella, Hystrichokibotium, Hystrichosphaeropsis, Invertocysta, Kofoidopsis, Komewuia, Lithodinia, Lithoperidinium, Membranophoridium, Millioudodinium, Multiplicisphaeridium, Nannoceratopsiaceae, Nannoceratopsiella, Nelsoniella, Odontochitinopsis, Oodnadattia, Ovoidinium, Palaeoglenodinium, Palaeoperidinioideae, Palaeotetradinium, Paleopedicystus, Palmnickia, Pareodiniaceae, Pentafidia, Peridiniales, Peridinites, Phanerodinium, Polyedryxium, Polystephanephorus, Polystephanosphaera, Priscogalea, Prolixosphaeridium, Pseudodeflandrea, Ptychodiscales, Pulvinosphaeridium, Raphidodinium, Rottnestia, Samlandia, Scriniocassis, Spherites, Spiniferites, Stephanelytron, Suessia, Taeniophora, Teneridinium, Tenua, Ternia, Thoracosphaerales, Toolongia, Triblastula, Trichodinium, Valvaeodinium, Vulcanisphaera, Wallodinium, Wetzeliella, Wetzelodinium, Xenicodinium, Xenikoon
Subtaxa: Polykrikos
Distribution: there are no occurrences of Polykrikaceae in the database