Species
Pycnosteus imperfectus Preobrazhensky, 1911
Current taxon already exists. See initial taxon Pycnosteus palaeformis
Taxon ID: 10343
Fossiiliryhmä: Agnatha
Sisältyy taksoniin: Pycnosteus
Other version of taxon: Pycnosteus palaeformis
Tyyppilajitiedot
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Luokittelu
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Superclass | Agnatha |
| Class | Pteraspidomorphi |
| Subclass | Heterostraci |
| Order | Pteraspidiformes |
| Suborder | Psammosteoidei |
| Family | Pycnosteidae |
| Genus | Pycnosteus |
| Species | imperfectus |
| palaeformis | |
| pauli | |
| tuberculatus |