Class Dinophyceae Fritsch 1929
PaleoDB taxon number: 321578
Sister taxa: none
Subtaxa: Aiora, Apteodinium, Baltisphaeridium, Belodinium, Broomea, Ceratocoryaceae, Danea, Diconodinium, Dictyopyxidia, Dictyopyxis, Diplotesta, Downiesphaeridium, Exochosphaeridium, Gonyaulacales, Gymnodinium, Heterocapsaceae, Komewuia, Nannoceratopsiaceae, Oodnadattia, Palaeoperidinioideae, Palaeotetradinium, Pareodiniaceae, Pentafidia, Prolixosphaeridium, Protoperidiniaceae, Ptychodiscales, Spiniferites, Stephanelytron, Ternia, Valvaeodinium, Wallodinium, Wetzeliella