Protozoa - Nassellaria - Triospyrididae
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, Stephaniidae, Theopiliidae
Subtaxa: Androspyris Anthospyris Archiphaena Brachiospyris Ceratospyris Clathrobursa Corythospyris Dendrospyris Desmospyris Dorcadospyris Gorgospyris Hexaspyris Lamprospyris Liriospyris Lophospyris Patagospyris Petalospyrella Petalospyris Psychospyris Rhodospyris Semantrum Tholospyridium Triospyrium
Ecology: passively mobile planktonic omnivore
Distribution:
• NN21 of North Pacific (9 collections)
• Neodenticula seminae of North Pacific (2)
• Brunhes of North Pacific (2)
• Quaternary of Japan (8), North Pacific (648), Southern Ocean (3)
• Neodenticula koizumii of North Pacific (1)
• Pliocene to Pleistocene of North Pacific (3)
• Pliocene of North Pacific (62), Southern Ocean (26)
• Miocene to Pliocene of North Pacific (1), Southern Ocean (1)
• Miocene of Ecuador (1), Indian Ocean (2), Japan (1), North Pacific (259), Southern Ocean (19)
• Oligocene to Miocene of North Pacific (38)
• Oligocene of Indian Ocean (1), New Zealand (3), North Pacific (174), South Pacific (1)
• Eocene to Oligocene of North Pacific (32)
• Eocene of Cyprus (6), North Pacific (133)
• Paleocene of China (1), New Zealand (10)
Total: 1447 collections including 2205 occurrences