Family
Novitatidae Syssoiev, 1972
Selection of related publications
Malinky, J. M., Berg-Madsen, V. 1999. A revision of Holm's Early and Early Mid Cambrian hyoliths of Sweden.  Palaeontology   42,   1,   25-65. DOI:10.1111/1475-4983.00061
List of species
2. Decoritheca affinis (Holm, 1893) | Middle Cambrian (old nomenclature)
4. Trapezotheca aemula (Holm, 1893) | Kunda Stage
5. Trapezotheca dens (Holm, 1893) | Kunda Stage
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Mollusca | 
| Class | Hyolitha | 
| Order | Orthothecida | 
| Family | Novitatidae | 
| Genus | Contitheca | 
| Decoritheca | |
| Trapezotheca | |
| Family | Orthothecidae | 
| Quadrothecidae |