Subgenus
Megistaspis (Paramegistaspis) Balashova, 1976
List of species
1. Megistaspis (Paramegistaspis) estonica (Tjernvik, 1956) | Lower Ordovician
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Arthropoda | 
| Subphylum | Trilobita | 
| Order | Asaphida | 
| Superfamily | Asaphoidea | 
| Family | Asaphidae | 
| Genus | Megistaspis | 
| Subgenus | (Ekeraspis) | 
| (Heraspis) | |
| (Megistaspidella) | |
| (Megistaspis) | |
| (Paramegistaspis) | |
| Species | estonica | 
| Subgenus | (Rhinoferus) | 
| Species | lawrowi | 
| norvegica | |
| ringsakerensis | |
| scutata |