Selection of related publications
Novitskaya L. I. 2004. Subclass Heterostraci.Fossil vertebrates of Russia and adjacent countries. Agnathans and early fisches. The reference book for palaeontologists and geologists , pp. 69-207. GEOS.
List of species
1. Obruchevia heckeri (Obruchev, 1936) | Frasnian
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Classification
Organism group | Biota |
Kingdom | Animalia |
Phylum | Chordata |
Subphylum | Vertebrata |
Superclass | Agnatha |
Class | Pteraspidomorphi |
Subclass | Heterostraci |
Order | Pteraspidiformes |
Suborder | Psammosteida |
Family | Obrucheviidae |
Genus | Obruchevia |
Species | heckeri |
Genus | Perscheia |
References based on distribution
- Novitskaya, 2004 Frasnian