Neues Jahrbuch für Mineralogie, Geologie and Paläontologie . Fig. 9. Spirifer mucronatus. Devon(Hamilton group). Widder, Ca-rl ada West. Museum Fig. 10. Spirifer mesacostalis CüNR. (?)(Sp. Bouchardi Beyr.) Höheres am Weg nachMurzuk. Over-weg leg.

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Keywords: ., bookauthorleon, bookcentury1800, booksubjectgeology, bookyear1830