Protozoa - Nassellaria - Theopiliidae
Parent taxon: Acanthodesmiacea according to P. De Wever et al. 2001
See also Loeblich and Tappan 1961
Sister taxa: Acanthodesmiidae, Artostrobiidae, Bulbocyrtiidae, Cannobotryidae, Carpocaniidae, Cuniculiformidae, Monicastericidae, Paratympanidae, Planispinocyrtiidae, Pterocorythidae, Rotaformidae, Sethophormididae, Spongolophophenidae, Spongosilicarmigeridae, Stephaniidae, Triospyrididae
Subtaxa: Cecryphalium Clathrocyclas Cycladophora Eucecryphalus Eurystomoskevos Lipmanella Phrenocodon Theocalyptra Theopilium
Type: Theopilium
Ecology: passively mobile planktonic omnivore
Distribution:
• NN21 of North Pacific (22 collections)
• Neodenticula seminae of North Pacific (3)
• Brunhes of North Pacific (2)
• Quaternary of Japan (8), North Pacific (659), Southern Ocean (11)
• C2 of North Pacific (7)
• Pliocene to Pleistocene of North Pacific (8), South Pacific (1)
• Pliocene of North Pacific (106), Southern Ocean (7)
• Neodenticula kamtschatica of North Pacific (9)
• Miocene to Pliocene of North Pacific (1)
• Miocene of Japan (1), North Pacific (51), Southern Ocean (16)
• Eocene of South Pacific (7)
• Paleocene of New Zealand (13), North Atlantic (1)
• Cretaceous of Japan (2)
• Triassic of Hungary (2)
Total: 937 collections including 1208 occurrences