Species
Rhadinacanthus primaris Valiukevičius, 1986
Synonymy list
1986     Rhadinacanthus primaris Valiukevičius, sp. nov. — Valiukevičius & Karatajūtė-Talimaa , pp. 116, fig. II 1-4
1998     Rhadinacanthus primaris Valiukevičius — Valiukevičius , pp. 7
2002     Rhadinacanthus primaris — Valiukevičius , pp. 36
2018     Rhadinacanthus primaris Valiukevičius, 1986 — Glinskiy & Pinakhina , pp. 83, fig. 3A, B, G, H
Selection of related publications
Glinskiy, V. N., Pinakhina, D. V. 2018. New data on psammosteid heterostracans (Pteraspidomorpha) and acanthodians (Acanthodii) from the Pärnu Regional Stage (Lower Eifelian, Middle Devonian) of Estonia.  Estonian Journal of Earth Sciences   67,   1,   76-87. DOI:10.3176/earth.2018.05
Valiukevičius, J. 1998. Acanthodians and zonal stratigraphy of Lower and Middle Devonian in East Baltic and Byelorussia.  Palaeontographica   A-248,      1-53.
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Classification
| Organism group | Biota | 
| Incertae sedis (fossils) | |
| Order | Diplacanthiformes | 
| Family | Diplacanthidae | 
| Genus | Rhadinacanthus | 
| Species | balticus | 
| deltosquamosus | |
| longispinus | |
| multisulcatus | |
| primaris | 
References based on distribution
- Valiukevičius, 1998 Mehikoorma 421 borehole Rezekne Stage
- Glinskiy & Pinakhina, 2018 Taali quarry Pärnu Stage