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 Poramborthis vonhorstigi Sdzuy, Hammann & Villas, 2001]
Kraft J., Mergl M., Hroch T., Kraft P. (2015): Index of fossiliferous localities of the Mílina Formation (Lower Ordovician of the Prague Basin, Czech Republic), Folia vol. 49, No. 1-2 [jako Poramborthis vonhorstigi Sdzuy, Hammann & Villas, 2001]