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A PRELIMINARY REPORT ON THE ANATOMY AND AFFINITIES OF MEDULLOSA NOEI SP. NOV. FROM THE PENNSYLVANIA OF ILLINOIS
TLDR
The petrified remains of a stem, roots, leaves, leaf bases, and petioles of the Pteridosperm, Medullosa were found in association, but structural characteristics indicate a rather definite relationship.
CORDAITEAN WOOD FROM THE PENNSYLVANIAN OF KANSAS
TLDR
Recently two samples of Pennsylvanian, silicified wood, from Kansas, were placed at the disposal of the writer, and the description is very meager and without illustrations, so that the original publication is of little value.