Order
Bajkalocerida Zhuravleva, 1978
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Orthoceratia |
| Order | Astroviida |
| Bajkalocerida | |
| Dissidoceratida | |
| Endoceratida | |
| Orthocerida | |
| Pseudorthocerida | |
| Rioceratida |
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Orthoceratia |
| Order | Astroviida |
| Bajkalocerida | |
| Dissidoceratida | |
| Endoceratida | |
| Orthocerida | |
| Pseudorthocerida | |
| Rioceratida |