|
Orthacanthus donnelljohnsi
|
|
sp. nov.
|
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
: 650-656
|
650-656 |
|
Orthacanthus donnelljohnsi
|
|
sp. nov.
|
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
: 656-657
|
656-657 |
