Dictyochophyceae

The silicoflagellates (order Dictyochales) are a small group of unicellular photosynthetic protists, or algae, belonging to the supergroup of eukaryotes known as Stramenopiles. They behave as phytoplankton and are present in oceanic waters. They are well known from harmful algal blooms that cause high mortality of fish. Additionally, they compose a rich fossil record represented by their silica skeletons.

Dictyochophyceae sensu lato is a photosynthetic lineage of heterokont algae.

Pedinellales (ICN) or Pedinellida (ICZN) is a group of single-celled algae found in both marine environments and freshwater.

Rhizochromulinales is an order of Dictyochophyceae. The order includes the genus, Rhizochromulina.

Florenciellales is an order of Dictyochophyceae.