Type species: Tubulipora lobulata Hassall, 1841 (part) (=Alecto dilatans Johnston, 1847)
This genus includes the species:
| Oncousoecia abrupta | Osburn, 1953 | Recent | California |
| Oncousoecia arcuata | Canu & Bassler, 1928 | Recent | Gulf of Mexico |
| Oncousoecia biloba | (Reuss, 1848) | Tertiary (Miocene) | Europe |
| Oncousoecia canadensis | Osburn, 1933 | Recent | Canada, Arctic |
| Oncousoecia cardioides | Guha & Nathan, 1996 | Cretaceous | India |
| Oncousoecia coarctata | (Canu & Bassler, 1926) | Cretaceous | England |
| Oncousoecia depressa | (d'Orbigny, 1850) | Cretaceous | Europe |
| Oncousoecia diastoporides | (Norman, 1869) | Recent | N.Atlantic, Arctic |
| Oncousoecia dilatans | (Johnston, 1847) | Recent | Britain |
| Oncousoecia narediensis | Guha & Gopikrishna, 2007 | Paleogene Eocene Lutetian | India Gujarat |
| Oncousoecia? nonomologabili | Taylor & McKinney, 2006 | Cretaceous Maastrichtian | USA New Jersey |
| Oncousoecia ovoidea | Osburn, 1953 | Recent | California |
| Oncousoecia parvula | (Canu & Bassler, 1926) | Cretaceous | England |
| Oncousoecia polygonalis | (Kluge, 1915) | Recent | Arctic |
| Oncousoecia varians | (Reuss, 1869) | Tertiary | Europe |
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