Genus
Trapezotheca Syssoiev, 1958
List of species
1. Trapezotheca aemula (Holm, 1893) | Kunda Stage
2. Trapezotheca dens (Holm, 1893) | Kunda Stage
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Hyolitha |
| Order | Orthothecida |
| Family | Novitatidae |
| Genus | Contitheca |
| Decoritheca | |
| Trapezotheca | |
| Species | aemula |
| dens |