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Biota (Life)
Eukaryote (Eukarya)
Chromista
Harosa
Rhizaria
Foraminifera
Monothalamea
Astrorhizida
Saccamminina
Saccamminoidea
Crithioninidae
Crithionininae
Crithionina

Crithionina sphaerica (23757973)