Radiolaria - Spumellaria - Hagiastridae

Parent taxon: Hagiastridae according to P. De Wever et al. 2001

Sister taxa: Archaeohagiastrum, Crucella, Higumastra, Monotrabs, Pobum, Pseudocrucella, Pseudohagiastrum, Pseudohigumastra, Pterotrabs, Savaryella, Sophia, Tetraditryma, Tetraporobrachia, Tetratrabs, Udalia

Subtaxa: Hagiastrum baloghi, Hagiastrum goestlingense, Hagiastrum karnicum, Hagiastrum longispinosum, Hagiastrum macrum, Hagiastrum majusculum, Hagiastrum obesum, Hagiastrum rudimentum

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Ecology: passively mobile planktonic omnivore