Lower Devonian land plants from graptolitic shale in south-eastern Alaska

12 4 Wed, 01/01/1969 - 12:00 December 559 573

, M. J., EBERLEIN, G., HUEBER, F. M., MAMAY, S. H. 1969. Lower Devonian land plants from graptolitic shale in south-eastern Alaska. Palaeontology, 12, 4, 559–573.

Michael Churkin Jr., G. Donald Eberlein, Francis M. Hueber and Sergius H. Mamay The Palaeontological Association (Free Access)