Type species: Bythopora fruticosa Miller & Dyer, 1878 (=Helopora dendrina James, 1878)
This genus includes the species:
| Bythopora alcicornis | Ulrich, 1893 | Late Ordovician Caradoc | USA (Minnesota) |
| Bythopora arctipora | (Nicholson, 1875) | Late Ordovician Caradoc | USA, Canada |
| Bythopora crenulata | Conti, 1990 | Ordovician | Italy (Sardinia) |
| Bythopora dendrina | (James, 1878) | Late Ordovician Caradoc-Ashgill | USA (Ohio) |
| Bythopora parallela | Owen, 1962 | Silurian Ludlovian | England |
| Bythopora porosa | Zheng, 1990 | Ordovician | China |
Batostomella from Cincinnati region: at University of Georgia.
Bythopora from Cincinnati region: at University of Georgia.
Bythopora from Nashville region: at University of Georgia.