in symbiosis with nitrogen-fixing cyanobacteria are among the genera Hemiaulus, Rhizosolenia and Chaetoceros. Dinotoms are diatoms that have become endosymbionts...

Late Jurassic–aged amber from Thailand, assigned to the living genus Hemiaulus. Crinoids diversified throughout the Jurassic, reaching their peak Mesozoic...

, Richelia, Calothrix) are found in association with diatoms such as Hemiaulus, Rhizosolenia and Chaetoceros. Marine cyanobacteria include the smallest...

resides in. For example, in the Hemiaulus and Richelia symbiosis, Richelia resides inside the siliceous frustule of Hemiaulus. Richelia lacks principal nitrogen...

descriptions of diatoms belonging to Hemiaulus were rightfully placed on Riedelia. Schrader and Fenner note that while Hemiaulus diatoms have polygonal areolated...

and Pacific waters. Richelia is found within the diatom frustule of Hemiaulus spp., and has a reduced genome. A 2011 study measured nitrogen fixation...

oligotrophic waters, five species within the genus Hemiaulus receive fixed nitrogen from R. intracellularis. Hemiaulus-Richella symbioses are up to 245 times more...

Hemiaulaceae Hemiaulus immanis (12), H. mesolepta (13) and H. crenatus (14 and 15) Scientific classification Domain: Eukaryota (unranked): SAR Superphylum:...

et al. 2019. Chaetoceros, Bacteriastrum, Dactyliosolen, Cerataulina, Hemiaulus, Eucampia, Acanthoceras, Urosolenia, Terpsinoë, Hydrosera. Lithodesmiophycidae...

incertae sedis Genus: †Corinna P.A.C.Heiberg, 1863 Species †Corinna elegans Heiberg, 1863 (accepted as Hemiaulus elegans (P.A.C.Heiberg) Grunow, 1884)...

unidentified related form †Hemiauchenia – or unidentified comparable form †Hemiaulus †Hemiaulus polymorphus – or unidentified comparable form Hemimactra †Hemimactra...