Siphonodendron
| Siphonodendron | |
|---|---|
   | |
| Siphonodendron sp. from Snook Point, Northumberland, UK | |
| Scientific classification  | |
| Kingdom: | Animalia | 
| Phylum: | Cnidaria | 
| Subphylum: | Anthozoa | 
| Class: | †Rugosa | 
| Family: | †Lithostrotionidae | 
| Genus: | † McCoy 1849  | 
| Species | |
|   †S. irregulare  | |
Siphonodendron is an extinct genus of colonial rugose corals common during the Carboniferous period. In fossil form it now appears as a white or brown mass of short spaghetti-like threads, usually flattened during distortion of the embedding limestone. It is in the sub-class Hexacorallia of corals with sixfold symmetry.
See also
 
