Genus
Cyrtodontula Tomlin, 1931
Selection of related publications
Isakar, M., Sinicyna, I. 1985. Redescription of E. Eichwald's Ordovician bivalve species.  Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология   34,   2,   46-54. DOI:10.3176/geol.1985.2.02
Eichwald, E. 1856. Beitrag zur geographischen Verbreitung der fossilen Thiere Russlands. Alte Periode. (Fortsetzung. S. Bulletin 1856. N 2. pag. 406.).  Bulletin of the Moscow Society of Naturalists. Geological series   29,   IV,   555-608.
List of species
1. Cyrtodontula esthona (Eichwald, 1856) | Rakvere Stage
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Mollusca | 
| Class | Bivalvia | 
| Subclass | Pteriomorphia | 
| Order | Arcida | 
| Superfamily | Cyrtodontoidea | 
| Family | Cyrtodontidae | 
| Suborder | Praecardiidina | 
| Genus | Cyrtodonta | 
| Cyrtodontula | |
| Species | esthona | 
| Genus | Macrodesma | 
| Veimarnella | |
| unranked | Yonginella | 
References based on distribution
- Isakar & Sinitsyna, 1985 Rakvere Rakvere Stage