Genus
Nyhamnia Johannessen, 1999
Selection of related publications
Johannessen, W. H. 1999. Nyhamnia n. gen., a new monotypic cystiphyllid rugose coral genus from the Lower Silurian of Gotland.  GFF   121,   4,   333-335. DOI:10.1080/11035899901214333
List of species
1. Nyhamnia pusilla Johannessen, 1999 | lower Silurian
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Cnidaria | 
| Subphylum | Anthozoa | 
| Subclass | Rugosa | 
| Order | Cystiphyllida | 
| Family | Holmophyllidae | 
| Genus | Gukoviphyllum | 
| Holmophyllum | |
| Nyhamnia | |
| Species | pusilla | 
| Genus | Xiphelasma | 
References based on distribution
- Johannessen, 1999 Gotland lower Silurian