Eukaryota  >  Bacillariophyta  >  Fragilariophyceae

Order	Family	Genus	Species
Climacospheniales	0	1	3
Cyclophorales	1	4	10
Fragilariales	2	34	274
Licmophorales	2	10	81
Protoraphidales	1	2	3
Rhabdonematales	2	5	20
Rhaponeidales	1	3	19
Striatellales	1	5	12
Tabellariales	1	2	7
Thalassionemales	1	4	24