@article {492,
	title = {A New Pteridosperm from Upper Pennsylvanian Deposits of North America},
	journal = {Palaeontographica Abtheilung B},
	volume = {96},
	year = {1954},
	pages = {12-23},
	chapter = {12},
	author = {Delevoryas, Theodore and Morgan, Jeanne}
}
