Family
Pycnostylidae Stumm, 1935
Selection of related publications
Wedekind, R. 1927. Die Zoantharia Rugosa von Gotland (bes. Nordgotland). Nebst Bemerkungen zur Biostratigraphie des Gotlandium.  Sveriges Geologiska Undersökning   19,      1-94.
List of species
2. Zelophyllum intermedium Wedekind, 1927 | Wenlock
3. Zelophyllum minimum Scheffen, 1933 | lower Silurian
4. Zelophyllum spinosum Wedekind, 1927 | Silurian
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Cnidaria | 
| Subphylum | Anthozoa | 
| Subclass | Rugosa | 
| Order | Stauriida | 
| Suborder | Stauriina | 
| Family | Pycnostylidae | 
| Genus | Zelophyllum | 
| Family | Stauriidae |