"Agnatha" II : thelodontiMärss, Tiiu; Turner, Susan; Karatajute-Talimaa, Valentina2007 https://www.ester.ee/record=b2403830*est

Discovery of rich Katian-Hirnantian jawed polychaete fauna from the Prague Basin, Czech RepublicTonarova, Petra; Vodražkova, Stanislava; Čap, Pavel; Hints, Olle; Nõlvak, Jaak; Kubajko, MichalLille 2021 : Ordovician of the World : programme with abstracts2021 / p. 75-76 https://docplayer.net/219093593-Programme-with-abstracts-2021-virtual-annual-meeting-of-igcp-virtual-annual-meeting-of-igcp-735.html