Taxon - Odkazy a literatura
Galle A., Parsley R. L. (2005): Epibiont relationships on hyolithids demonstrated by Ordovician trepostomes (Bryozoa) and Devonian tabulates (Anthozoa), Bulletin of Geosciences, Vol. 80, No. 2, 125–138 [jako Hyostragulum annae Galle & Plusquellec, 2002]