Bacillariophyta (Diatoms) is a phylum of heterokont. There are 4333 species of Diatoms, in 570 genera and 96 families. This phylum has been around since the silurian period. It includes groups like Fragilariophyceae, Coscinodiscophyceae, and Mediophyceae. Dead Diatoms form siliceous oozes.
EOL has data for 24 attributes, including: