Type species: Cellepora trifaria von Hagenow, 1846
This genus includes the species:
| Dionella coromandalis | Guha & Nathan, 1996 | Cretaceous | India |
| Dionella flacilla | (Brydone, 1916) | Cretaceous Campanian | England |
| Dionella inermis | Voigt, 1967 | Cretaceous Maastrichtian | Russia |
| Dionella profunda | (MacGillivray, 1895) | Neogene Miocene | SE Australia |
| Dionella rindsbergi | Taylor & McKinney, 2006 | Cretaceous Maastrichtian | USA Alabama, N.Carolina |
| Dionella simulacrum | (Brydone, 1914) | Cretaceous Santonian-Campanian | England, Germany |
| Dionella subboletiformis | Voigt, 1949 | Cretaceous Campanian | Germany |
| Dionella suffragista | (Brydone, 1914) | Cretaceous | England, Germany, Sweden |
| Dionella surculus | (Brydone, 1929) | Cretaceous Campanian-Maastrichtian | England |
| Dionella trifaria | (von Hagenow, 1846) | Cretaceous Maastrichtian | Germany |
| Dionella trigonopora | (Marsson, 1887) | Cretaceous Campanian-Maastrichtian | Germany, England, Denmark |
| Dionella triminghamensis | (Brydone, 1906) | Cretaceous Maastrichtian | England |
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