Ga
- Galeopsis
Ge
- Gemellipora
- Gemelliporella
- Gemelliporellidae
- Gemelliporidra
- Gemelliporina
- Gephyrophora
- Gephyrotes
Gi
Gigantopora Ridley, 1881
- Gigantopora birostris Tilbrook, 2006
- Gigantopora foraminosa Hayward & Cook, 1983
- Gigantopora kirkpatricki Hayward, 1988
- Gigantopora oropiscis Gordon & d'Hondt, 1997
- Gigantopora polymorpha (Busk, 1884)
- Gigantopora profunda Harmer, 1957
- Gigantopora proximalis Gordon, 1984
- Gigantopora pupa (Jullien, 1903)
- Gigantopora spathula Hayward & Winston, 2011
- Gigantopora spiculifera Canu & Bassler, 1927
- Gigantopora unirostris Canu & Bassler, 1929
- Gigantopora verrucosissima Moyano, 2002
Bryozoa → Gymnolaemata → Cheilostomatida → Schizoporelloidea → Gigantoporidae
Porodidca Gigantoporidae Bassler, 1935
- Barbadiopsis Winston & Woollacott, 2009
- Cosciniopsis Canu & Bassler, 1927
- Gephyrophora Busk, 1884
- Gigantopora Ridley, 1881
Bryozoa → Gymnolaemata → Cheilostomatida → Flustrina → Schizoporelloidea
Gl
- Glabrilaria
- Glyptopora
Go
Porodica Goniocladiidae Waagen & Pichl, 1885
- Cystocladia Ernst & Minwegen, 2006
- Dolichozoon Ernst & Buttler, 2012
- Goniocladia Etheridge, 1876
- Hiberotrypa Ernst & Buttler, 2012
- Ramipora Toula, 1875
- Ramiporalia Shulga-Nesterenko, 1933
- Ramiporella Shulga-Nesterenko, 1933
Bryozoa → Stenolaemata → Cystoporida → Fistuliporina → Goniocladiidae
- Gontarella
Gr
- Grammascosoecia
- Gregarinidra
Gy
Razred Gymnolaemata Allman, 1856
- Cheilostomatida Busk, 1852
- Ctenostomatida Busk, 1852
Animalia → Eumetazoa → Bilateria → Protostomia → Bryozoa