Family Stephaniidae Haeckel 1887 (radiolarian)
Protozoa - Nassellaria - Stephaniidae
Parent taxon: Acanthodesmiacea according to P. De Wever et al. 2001
Sister taxa: Acanthodesmiidae, Artostrobiidae, Bulbocyrtiidae, Cannobotryidae, Carpocaniidae, Cuniculiformidae, Monicastericidae, Paratympanidae, Planispinocyrtiidae, Pterocorythidae, Rotaformidae, Sethophormididae, Spongolophophenidae, Spongosilicarmigeridae, Theopiliidae, Triospyrididae
Subtaxa: Cortina Plagiocarpa Stephanium
Type: Stephanium
Ecology: passively mobile planktonic omnivore
Distribution: there are no occurrences of Stephaniidae in the database