Haude 2004. Morphology and palaeobiology of echinoderms in the Lower Devonian of the Argentine Precordillera. Echinoderms: Muenchen. Proceedings of the 11th International Echinoderm Conference, Munich, Germany, 6-10 October 2003., A.A. Balkema Publishers, Leiden, London etc., 2004: i-xxvi, 1-633. Chapter pagination: 417-419