Radiolaria - Entactinaria - Eptingiidae

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

Sister taxa: Capnuchospyris, Charlottea, Coronatubopyle, Cryptostephanidium, Divatella, Eptingium, Ferresium, Perisphyridium, Perispyridium, Pylostephanidium, Spongostephanidium, Tozerium, Triassistephanidium, Triassolaguncula, Veleptingium

Subtaxa: Xenorum flexum, Xenorum jinluense, Xenorum jurassicum, Xenorum rotundum

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Ecology: passively mobile planktonic omnivore