Eukaryota  >  Bacillariophyta  >  Fragilariophyceae

Order	Family	Genus	Species
Climacospheniales	0	1	3
Cyclophorales	1	3	8
Fragilariales	2	34	268
Licmophorales	2	10	76
Protoraphidales	1	2	3
Rhabdonematales	2	5	20
Rhaponeidales	1	3	18
Striatellales	1	5	11
Tabellariales	1	2	6
Thalassionemales	1	2	21