Cyclotella
(tree size 160)
Discostella
(tree size 24)
Crateriportula
Cyclostephanos
(tree size 30)
Dimidialimbus
(tree size 1)
Fodosira
Pelagodictyon
(tree size 3)
Pleurocyclus
Pseudostephanodiscus
(tree size 1)
Puncticulata
Stephanocostis
(tree size 1)
Stephanodiscus
(tree size 132)
Strelnikoviella
(tree size 1)
Mesodictyon
(tree size 4)
Pliocaenicus
(tree size 1)
Tertiariopsis
(tree size 7)
Cyclotella cretica var. cyclopuncta