†Hiscocapsa O'Dogherty 1994 (radiolarian)
Radiolaria - Nassellaria - Williriedellidae
Parent taxon: Williriedellidae according to D. M. Hull 1997
Sister taxa: Cryptamphorella, Excentropylomma, Helvetocapsa, Hemicryptocapsa, Holocryptocanium, Holocryptocapsa, Immersothorax, Kozurium, Minocapsa, Praewilliriedellum, Striatojaponocapsa, Trisyringium, Williriedellum, Zhamoidellum
Subtaxa: Hiscocapsa asseni, Hiscocapsa funatoensis, Hiscocapsa lugeoni, Hiscocapsa matsuokai, Hiscocapsa minuta
Ecology: passively mobile planktonic omnivore