Gymnolaemata - Cheilostomata - Gigantoporidae
Parent taxon: Schizoporelloidea according to D. P. Gordon and P. D. Taylor 2015
See also Bassler 1953, Bock 2006, Brown 1952, Brown 1958, Canu and Bassler 1935, Cheetham 1962, Di Martino and Taylor 2015, Guha and Gopikrishna 2007, Lee et al. 1997 and Schmidt 2003
Sister taxa: Actisecidae, Cheiloporinidae, Eminooeciidae, Illusiopora, Lacernidae, Lanceoporidae, Margarettidae, Microporellidae, Myriaporidae, Ostrovskia, Petraliellidae, Porinidae, Schizoporellidae, Vicidae
Subtaxa: Cosciniopsis Cylindroporella Dightonia Gephyrophora Gigantopora Hemicosciniopsis Pachystomaria Schizaropsis Semihaswellia Stenopsella
Type: Gigantopora
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Costa Rica (3 collections)
• Pliocene of New Zealand (1)
• Miocene to Oligocene of Australia (4)
• Miocene of Australia (2), India (1), Indonesia (3)
• Oligocene to Miocene of Australia (2)
• Oligocene of Australia (3), India (2), New Zealand (1), United States (2: Alabama)
• Eocene of India (3), New Zealand (2), United States (3: Florida, Georgia, Mississippi)
Total: 32 collections including 41 occurrences