Type species: Trematopora regularis Hall & Simpson, 1874
This genus includes the species:
| Orthopora? acuta | McNair, 1942 | Devonian | USA |
| Orthopora bifurcata | Nekhoroshev, 1932 | Devonian Famennian | Germany |
| Orthopora bispinulata | (Hall, 1881) | Devonian Givetian | USA |
| Orthopora bucheri | Fenton & Fenton, 1924 | Devonian Frasnian | USA |
| Orthopora canaliculata | (Hall, 1879) | Devonian Lochkovian | USA |
| Orthopora carinata | Hall & Simpson, 1887 | Devonian Givetian | USA |
| Orthopora casualis | Gorjunova, 1985 | Silurian Wenlockian | USA New York |
| Orthopora elongata | Hall & Simpson, 1887 | Devonian Givetian | USA |
| Orthopora granifera | Hall & Simpson, 1887 | Devonian Givetian | USA |
| Orthopora granilinea | Hall & Simpson, 1887 | Devonian Lochkovian | USA |
| Orthopora hexagona | (Hall & Simpson, 1887) | Devonian Givetian | USA |
| Orthopora immersa | Hall & Simpson, 1887 | Devonian Givetian | USA |
| Orthopora interplana | Hall & Simpson, 1887 | Devonian Givetian | USA |
| Orthopora kopaevitshi | Yaroshinskaya, 1990 | Silurian | Russia |
| Orthopora? limata | Astrova, 1964 | Devonian Lochkovian | Russia |
| Orthopora lineata | Hall & Simpson, 1887 | Devonian Givetian | USA |
| Orthopora marginata | Kopaevich, 1975 | Silurian Pridolian | Estonia, Ukraine |
| Orthopora nodosa | Hall & Simpson, 1887 | Devonian Lochkovian | USA |
| Orthopora orbipora | (Hall, 1881) | Devonian Givetian | USA |
| Orthopora ornata | Hall & Simpson, 1887 | Devonian Givetian | USA |
| Orthopora ovatipora | (Hall, 1879) | Devonian Lochkovian | USA |
| Orthopora parallela | (Hall, 1879) | Devonian Lochkovian | USA |
| Orthopora polygona | (Hall, 1881) | Devonian Givetian | USA |
| Orthopora regulariformis | Samsonowicz, 1951 | Devonian Eifelian | Poland |
| Orthopora regularis | (Hall & Simpson, 1874) | Devonian Lochkovian, Eifelian | USA New York, Ohio |
| Orthopora reticulata | Hall & Simpson, 1887 | Devonian Givetian | USA |
| Orthopora rhombifera | (Hall, 1874) | Devonian Lochkovian | USA |
| Orthopora scutulata | (Hall, 1881) | Devonian Emsian | USA |
| Orthopora sinensis | Yang, 1956 | Devonian Givetian | China |
| Orthopora subquadrata | (Hall, 1881) | Devonian Givetian | USA |
| Orthopora tomensis | Tolokonnikova, 2007 | Devonian Famennian | Russia Kuzbass |
| Orthopora tonolowayensis | Bassler, 1923 | Silurian Ludlovian | USA W.Virginia, Russia |
| Orthopora tortalinea | (Hall, 1881) | Devonian Givetian | USA |
| Orthopora transversa | (Hall, 1881) | Devonian | USA |
| Orthopora ulrichi | Fenton & Fenton, 1924 | Devonian Frasnian | USA Iowa |
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