Asterosiga accepted as Astrosiga W.S. Kent, 1880 (source of synonymy)
Corynophora accepted as Corynephora C.A. Agardh, 1824 accepted as Leathesia S.F. Gray, 1821 (source of synonymy)
Cryptoperidinium accepted as Kryptoperidinium Lindemann, 1924 (source of synonymy)
Cyclococcolithella † accepted as Cyclolithella A.R. Loeblich Jr. & H. Tappan, 1963 † (source of synonymy)
Desmotrichium accepted as Desmotrichum Kützing, 1845 (source of synonymy)
Lophocladiae accepted as Lophocladia F. Schmitz, 1893 (source of synonymy)
Palisadi accepted as Palisada K.W. Nam, 2007 (source of synonymy)
Pallisada accepted as Palisada K.W. Nam, 2007 (source of synonymy)
Phycocoelis accepted as Phycocelis Strömfelt, 1888 (source of synonymy)