which group of protists to euglena belong to
Euglena The venerable Euglena viridis was found to be genetically closer to Khawkinea quartana than to the other species of Euglena studied.[32] Recognizing the polyphyletic nature of the genus Euglena, Marin et al. (2003) have revised it to include certain members traditionally placed in Astasia and Khawkinea.[16]