Taxon - Odkazy a literatura
Sdzuy K., Hammann W., Villas E. (2001): Tremadoc fauna from Vogtendorf and the Bavarian Ordovician of the Frankenwald (Germany), Senckenbergiana lethaea 81(1), 207–261 [jako Ranorthis franconica Sdzuy, Hammann & Villas, 2001]