Bacchidinium
Balcattia
Balmula
Balteocysta
Barbatacysta
Barssidinium
Batiacasphaera
Batioladinium
Beaumontella
Bejuia
Bellatudinium
Belodinium
Beyrichodinium
Bicarinellum
Biconidinium
Biechelerella
Biorbifera
Bipolaribucina
Bitectatodinium
Bitorus
Bitubericysta
Blysmatodinium
Bohaidina
Bonetocardiella
Boreocysta
Bosea
Bosedinia
Bourkidinium
Bradleyella
Breedoxella
Brigantedinium
Broomea
Brotzenia
Bulbodinium
Burtonia