Coscinodiscus cf. granii

Systematics :

Kingdom: Chromista
Phylum: Diatoms (Bacillariophyta)
Class: Bacillariophyceae
Order: Centrales
Suborder: Coscinodiscineae
Family: Coscinodiscaceae
Genus: Coscinodiscus
Species (sp.): Coscinodiscus cf. granii