BioStor
 | Fossil and Recent Bryozoa of the Gulf of Mexico Region (1928) Proceedings of The United States National Museum 72: 1-199 |
 | Bryozoa of the Pacific Coast of America. Part 2, Cheilostomata Ascophora Raymond C Osburn (1952) Allan Hancock Pacific Expedition 14: 1-611 |
 | Fossil Bryozoa from the Pleistocene of Southern California J D Soule and M M Duff (1957) Proc. Calif. Acad. Sci. (4) 29: 87-146 |
 | Polyzoa from West Africa, notes on the genera Hippoporina Neviani, Hippoporella Canu, Cleidochasnia Harmer and Hippoporidra Canu & Bassler (Cheilostomata, Ascophora) P L Cook (1964) Bull. Brit. Mus. Nat. Hist. (Zool.) 12: 1-35 |
 | A nomenclatural index to 'A history of the British Marine Polyzoa' by T.Hincks (1880) J S Ryland (1969) Bulletin of the British Museum (Natural History) 17: 207-260 |
 | The South African Museum's Meiring Naude Cruises. Part 13. Bryozoa 2 P J Hayward and P L Cook (1983) Annals of The South African Museum 91: 1-161 |