Taxon - Links and literature
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 [as Ranorthis franconica Sdzuy, Hammann & Villas, 2001]