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Fragmenta silurica dono Caroli Henrici Wegelin Tab. IV BHL. Fragmenta silurica dono Caroli Henrici Wegelin Opus studio Nicolai Petri Angelin inchoatum jussu et impensis Academiae regiae scientiarum suecicae edendum curavit Lindstrm Tab IV Illustration biodiversitylibrary org title Angelin Kungl Svenska vetenskapsakademien