Ochrophyte orders

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.

Phaeothamniales is an order of alga in the Ochrophyta.

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

The Parmales are an order of marine microalgae within the Bolidophyceae class. They are found worldwide and characterized by a cell wall composed of 5-8 interlocking silica plates with distinct forms. They were initially thought to be loricate choanoflagellates but were shown to be a separate phyla entirely upon the discovery of chloroplasts, placing it among the photosynthetic stramenopiles.

REDIRECT Raphidophyte

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

Florenciellales is an order of Dictyochophyceae.