Citation: H. Sudkamp W. et Burrow C.j, The acanthodian Machaeracanthus from the Lowen Devonian Hunsruck Slate of the Hunsruck region (Germany), Palaontologische Zeitschrift Palaontologische Zeitschrift (Print);Journal of Palaontologische Gesellschaft Scientific contributions to palaeontology, 81(1), 2007, pp. 97-104