Children (28 direct children, 3011 direct and indirect children):
Asterolamprales
(tree size 57)
Chaetocerotales
(tree size 2)
Chaetocerotaceae
(tree size 342)
Chaetocerotophycidae
Triceratiales
(tree size 131)
Biddulphiales
(tree size 154)
Coscinodiscales
(tree size 723)
Rhizosoleniales
(tree size 155)
Thalassiosirales
(tree size 700)
Aulacoseirales
(tree size 162)
Melosirales
(tree size 127)
Lithodesmiales
(tree size 37)
Hemiaulales
(tree size 16)
Chrysanthemodiscales
(tree size 3)
Corethrales
(tree size 11)
Orthoseirales
(tree size 18)
Cymatosirales
(tree size 103)
Anaulales
(tree size 35)
Paraliales
(tree size 45)
Arachnoidiscales
(tree size 1)
Leptocylindrales
(tree size 12)
Stictocyclales
(tree size 3)
Stictodiscales
(tree size 59)
Lithodesmidales
Ethmodiscales
(tree size 4)
Meloseirales
(tree size 83)
Cymatosirophycidae
Archaegladiopsophycidae