Eukaryota  >  Bacillariophyta  >  Bacillariophyceae  >  Cymbellales

Family	Genus	Species
Anomoeoneidaceae	4	8
Cymbellaceae	17	147
Encyonemataceae	1	30
Gomphonemataceae	8	77
Rhoicospheniaceae	4	11
Witkowskiaceae	3	7