†Archicapsa Haeckel 1881 (radiolarian)
Radiolaria - Nassellaria - Sethocapsidae
Parent taxon: Sethocapsidae according to P. De Wever et al. 2001
Sister taxa: Arcanicapsa, Gongylothorax, Heliocryptocapsa, Homoeoarchicorys, Kilinora, Plicaforacapsa, Sethocapsa, Stylocapsa, Yaocapsa
Subtaxa: none
Ecology: passively mobile planktonic omnivore