Genus
Cotalagnostus Whitehouse, 1936
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Trilobita |
| Order | Agnostida |
| Family | Spinagnostidae |
| Genus | Cotalagnostus |
| Species | claudicans |
| confusus | |
| greilingi | |
| Genus | Doryagnostus |
| Hypagnostus | |
| Peratagnostus | |
| Tomagnostella |