Type species: Helopora divaricatus Ulrich, 1886
This genus includes the species:
| Ulrichostylus bhargavai | Ernst, 2007 | Ordovician | India |
| Ulrichostylus costatus | Lobdell, 1992 | Ordovician | USA (N. Dakota) |
| Ulrichostylus dakotensis | Lobdell, 1992 | Ordovician | USA (N. Dakota) |
| Ulrichostylus divaricatus | (Ulrich, 1886) | Ordovician | USA |
| Ulrichostylus elegans | (Ulrich, 1893) | U. Ordovician | USA (Ohio, Indiana) |
| Ulrichostylus imbricata | (Ulrich, 1890) | U. Ordovician | USA, Canada |
| Ulrichostylus lingulatus | Yang & Xia, 1976 | Silurian | China (Yunnan) |
| Ulrichostylus radiatus | Conti, 1990 | Ordovician | Sardinia |
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