Radiolaria - Spumellaria - Hagiastridae

Parent taxon: Hagiastridae according to W. Kiessling 1999

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

Subtaxa: Higumastra angustabraccia, Higumastra devilsgapensis, Higumastra exigua, Higumastra hui, Higumastra imbricata, Higumastra inflata, Higumastra laxa, Higumastra lupheri, Higumastra obesabraccia, Higumastra scassoi, Higumastra transversa

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Ecology: passively mobile planktonic omnivore