Eukaryota  >  Bacillariophyta  >  Mediophyceae

Order	Family	Genus	Species
Anaulales	1	3	8
Ardissoneales	1	3	6
Biddulphiales	1	9	28
Cymatosirales	1	12	76
Eupodiscales	3	8	42
Hemiaulales	2	6	28
Lithodesmiales	1	4	21
Toxariales	1	1	2
Triceratiales	2	10	64