Check-lists
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Links and literature
[1] Havlíček V. & Štorch P. (1990): Silurian brachiopods and benthic communities in the Prague Basin (Czechoslovakia), Ústřední ústav geologický, Academia [as Gracianella plicumbra Johnson & Boucot, 1967]
Havlíček V. & Štorch P. (1990): Silurian brachiopods and benthic communities in the Prague Basin (Czechoslovakia), Ústřední ústav geologický, Academia [as Gracianella plicumbra Johnson & Boucot, 1967]