Galaxauraceae is a family of red algae (Rhodophyta) in the order Nemaliales.
The type genus is Galaxaura.
The name Galaxauraceae was first published by Russian botanist Paulus Horaninow (1796-1865) in 1843.P. Horaninow, Tetractys Naturae seu Systema quadrimembre omnium naturalium, quod primis lineis systematis naturae, a se editis. 62 pp. Typis K. Wienhöberianis, Petropoli [St. Petersburg].
The family has cosmopolitan distribution.
Calcification (while, chalky outer layer) appears in all members of the Galaxauraceae family.John Marinus Huisman
List of genera According to the AlgaeBase (amount of species per genus); Actinotrichia - 5 spp. Dichotomaria - 20 spp. Galaxaura - 25 spp. Tricleocarpa - 8 spp.
Former genera; Alysium , Brachycladia , Halysium , Holonema , Microthoe , Pseudoscinaia , Spongotrichum and Zanardinia
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