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Dentitions of late Palaeozoic Orthacanthus species and new species of ?Xenacanthus (Chondrichthyes: Xenacanthiformes) from North America. Acta Geologica Polonica, 49(3), 215–266
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Fishes and tetrapods in the Upper Pennsylvanian (Kasimovian) Cohn Coal Member of the Mattoon Formation of Illinois, United States: Systematics, Paleoecology, and Paleoenvironments. Palaios, 26(10), 639–657
DOI: 10.2110/palo.2010.p10-121r