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:
• Quaternary of Japan (8 collections)
• Miocene of Ecuador (1), Japan (1)
• Oligocene of New Zealand (3)
• Eocene of Cyprus (6)
• Paleocene of China (1), New Zealand (10)
Total: 30 collections including 32 occurrences