Taxon - Odkazy a literatura
Havlíček V. & Štorch P. (1990): Silurian brachiopods and benthic communities in the Prague Basin (Czechoslovakia), Ústřední ústav geologický, Academia [jako Kirkidium (Kirkidium) Amsden, Boucot & Johnson, 1967]
Havlíček V. & Štorch P. (1990): Silurian brachiopods and benthic communities in the Prague Basin (Czechoslovakia), Ústřední ústav geologický, Academia [jako Kirkidium (Kirkidium) Amsden, Boucot & Johnson, 1967]