Species
Guerichosteus kozlowskii Halstead Tarlo, 1964
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Superclass | Agnatha |
| Class | Pteraspidomorphi |
| Subclass | Heterostraci |
| Order | Pteraspidiformes |
| Suborder | Psammosteida |
| Family | Guerichosteidae |
| Genus | Guerichosteus |
| Species | kozlowskii |
| heterolepis |