Genus
Cyrtodiscus Perner, 1903
Selection of related publications
Ebbestad, J. O. R., Högström, A. E. S., Frisk, Ǻ. M. 2013. Gastropods and tergomyans from the Upper Ordovician (Viru-Harju) of the Fagelsang area, Scania, southern Sweden.  Journal of Systematic Palaeontology   11,   3,   295-336. DOI:10.1080/14772019.2012.660994
List of species
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Mollusca | 
| Class | Tergomya | 
| Order | Cyrtonellida | 
| Family | Carcassonnellidae | 
| Cyrtolitidae | |
| Pollicinidae | |
| Genus | Cyrtodiscus | 
| Species | ? evolvens | 
| Genus | Peelerophon |