Diatom families

Bacillariaceae is a family of diatoms, the only family in the order Bacillariales. Some species of genera such as Nitzchia are found in halophilic environments; for example, in the seasonally flooded Makgadikgadi Pans in Botswana.

Naviculaceae is a diatom family in the order Naviculales.

Stephanodiscaceae is a family of diatoms belonging to the order Stephanodiscales.

Biddulphiaceae is a family of diatoms, the only family in the order Biddulphiales. The Biddulphiaceae are distinguished from the Eupodiscaceae by their pseudocelli, where the Eupodiscaceae have fully developed ocelli. Both families commonly inhabit the littoral zone of the ocean, close to the shore. Sixteen species of Biddulphiaceae are found on the west coast of India.

Coscinodiscaceae is a family of diatom the order Coscinodiscales. Diatoms are a type of algae characterized by their unique silica cell walls.

Achnanthaceae is a family of algae belonging to the order Achnanthales, and was first described in 1844 by Friedrich Traugott Kützing.

Surirellaceae is a family of diatoms in the order Surirellales.

Hemiaulaceae is a diatom family. Species live between -1.86 and 29.47 degrees Celsius and at depths of up to 2010 meters.

The Cymbellaceae are a diatom family in the order Cymbellales.

Rhizosoleniaceae is a family of diatoms belonging to the order Rhizosoleniales.

Pleurosigmataceae is a diatom family of the order Naviculales.

Amphiprora is a family of diatoms belonging to the order Naviculales. It contains eight accepted genera: Amphipleura Amphiprora Cistula Eileencoxia Frustulia Halamphora Pseudofrustulia Vanheurckia