Family
Pugnacidae Rzhonsnitskaya, 1965
Selection of related publications
Bekker, H. 1924. Devon Irboska ümbruses: stratigraafia, fauna ja paleogeograafia.  Eesti Loodusteaduse Arhiiv   X,   1,   1-55.  K. Mattiesen. 
List of species
1. Pugnax livonica (Buch, 1838) | Devonian
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Rhynchonellata | 
| Order | Rhynchonellida | 
| Superfamily | Pugnacoidea | 
| Family | Petasmariidae | 
| Pugnacidae | |
| Genus | Pugnax |