Type species: Callopora crenulata Ulrich, 1893
This genus includes the species:
| Halloporina crenulata | (Ulrich, 1893) | Late Ordovician Caradocian | USA (Minnesota, Iowa, Wisconsin) |
| Halloporina parva | (Ulrich & Bassler, 1904) | Late Ordovician Caradocian | USA (Tennessee) |
| Halloporina severozemelica | Nekhorosheva, 2002 | Ordovician | Russia |
Calloporina (=Halloporina) from Nashville region: at University of Georgia.
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