Family Sethophormididae Haeckel 1881 (radiolarian)
Protozoa - Nassellaria - Sethophormididae
Parent taxon: Acanthodesmiacea according to P. De Wever et al. 2001
Sister taxa: Acanthodesmiidae, Artostrobiidae, Bulbocyrtiidae, Cannobotryidae, Carpocaniidae, Cuniculiformidae, Monicastericidae, Paratympanidae, Planispinocyrtiidae, Pterocorythidae, Rotaformidae, Spongolophophenidae, Spongosilicarmigeridae, Stephaniidae, Theopiliidae, Triospyrididae
Subtaxa: Enneaphormis Protoscenium Sethophormis Velicucullus
Ecology: passively mobile planktonic omnivore
Distribution: there are no occurrences of Sethophormididae in the database