Type species: Hemipachydictya copiosa Kopaevich, 1970
This genus includes the species:
| Metadictya bifurcata | (Hall, 1883) | Ordovician Silurian |
USA, Estonia Estonia, Sweden |
| Metadictya bowanensis | (Ross, 1961) | Ordovician | Australia (NSW) |
| Metadictya copiosa | (Kopaevich, 1970?) | Silurian | Estonia |
| Metadictya fimbriata | (Ulrich, 1886) | Ordovician | USA (Minnesota) |
| Metadictya holmi | (Hennig, 1905) | Silurian (Wenlock) | Sweden (Gotland) |
| Metadictya macropora | (Hennig, 1905) | Silurian (Wenlock) | Sweden (Gotland) |
| Metadictya porkuniensis | Lavrentjeva, 1993 | Ordovician | Estonia |
| Metadictya reticulata | (Kopajevich, 1970) | Silurian (Llandovery) | Estonia |
| Metadictya salemensis | (Coryell, 1921) | Ordovician (Caradoc) | USA (Tennessee) |
| Metadictya singularis | (Kopajevich, 1970) | Silurian (Llandovery) | Estonia |
| Metadictya striatipora | (Kopajevich, 1970) | Silurian (Llandovery) | Estonia |
| Metadictya varia | Kopaevich, 1975 | Silurian | Estonia, USA, Canada, England |
This information is based upon various sources, but no personal knowledge. I am indebted to the late Alan Horowitz for his compilation, and to Dr. J. Pachut.
I would be grateful for corrections to, or critical reviews of this information. This is not a 'final' version (an impossible ideal), but a working document.
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