Naviculales

The Naviculales are an order of diatoms.

Family
According to the GBIF, the order has the following families;


 * Amphipleuraceae (contains 1k species)
 * Berkeleyaceae (144)
 * Brachysiraceae (112)
 * Cavinulaceae (15)
 * Cosmioneidaceae (7)
 * Diadesmidaceae (303)
 * Diploneidaceae (450)
 * Gomphonemaceae (12)
 * Metascolioneidaceae (3)
 * Naviculaceae (9k)
 * Neidiaceae (676)
 * Phaeodactylaceae (2)
 * Pinnulariaceae (3k)
 * Plagiotropidaceae (50)
 * Pleurosigmataceae (881)
 * Proschkiniaceae (36)
 * Scolioneidaceae (1)
 * Scoliotropidaceae (59)
 * Sellaphoraceae (250)
 * Stauroneidaceae (1k)

Unplaced genera
There are 5 genera that are incertae sedis.
 * Boreozonacola Lange-Bertalot, Kulikovskiy & Witkowski, 2010 (4)
 * Brevilinea P.A.Siver, P.B.Hamilton & E.A.Morales, 2008 (2)
 * Cholnokyella J.C.Taylor & Lange-Bertalot, 2013 (1)
 * Playaensis S.A.Spaulding & J.P.Kociolek, 2002 (3)
 * Rexlowea J.P.Kociolek & E.W.Thomas, 2010 (2)

Figures in brackets are approx. how many species per genus.