Radiolaria - Nassellaria - Hsuidae

Synonyms: Drulanta Yeh 1987, Fantus Yeh 1987, Lupherium Pessagno, Jr. and Whalen 1982

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

Sister taxa: Hsuum, Linaresia, Pseudohsuum, Semihsuum, Transhsuum

Subtaxa: Drulanta bella, Drulanta pulchra, Fantus exiguus, Fantus schoolhousensis, Lupherium nitidum, Lupherium snowshoense, Parahsuum carpathicum, Parahsuum edenshawi, Parahsuum formosum, Parahsuum hiconocosta, Parahsuum izeense, Parahsuum longiconicum, Parahsuum mostleri, Parahsuum officerense, Parahsuum ovale, Parahsuum primitivum, Parahsuum publicum, Parahsuum simplum, Parahsuum vizcainoense

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Type: Parahsuum simplum

Ecology: passively mobile planktonic omnivore