Genus
Syltrochos von Hacht, 1981
Selection of related publications
Rhebergen, F. 2009. Ordovician sponges (Porifera) and other silicifications from Baltica in Neogene and Pleistocene fluvial deposits of the Netherlands and northern Germany.  Estonian Journal of Earth Sciences   58,   1,   24-37. DOI:10.3176/earth.2009.1.03
List of species
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Porifera | 
| Class | Demospongea | 
| Subclass | Tetractinomorpha | 
| Order | Streptosclerophorida | 
| Suborder | Sphaerocladina | 
| Family | Astylospongiidae | 
| Genus | Astylospongia | 
| Carpospongia | |
| Caryoconulus | |
| Caryospongia | |
| Lindstoemispongia | |
| Palaeomanon | |
| Syltrochos | |
| Species | pyramidoidalis | 
| Genus | Tympanospongia |