Orthacanthus undetermined, Taxa Only, Exact Match: 2 Treatments

Orthacanthus undetermined			Štamberg, Stanislav, Schneider, Jörg W. & Werneburg, Ralf, 2016, Fossil Fauna And Flora Of A Re-Discovered Locality In The Late Carboniferous Ploužnice Horizon Of The Krkonoše Piedmont Basin, Bohemian Massif, Fossil Imprint 72 (3 - 4), pp. 215-224 : 218	218
Orthacanthus undetermined			Johnson, Gary D. & Thayer, David W., 2009, Early Pennsylvanian xenacanth chondrichthyans from the Swisshelm Mountains, Arizona, USA, Acta Palaeontologica Polonica 54 (4), pp. 649-668 : 657-658	657-658