Bibliography--Answer to Query
3 records found for
author name Nygreen, P.W..
Title: A new spore genus from the Upper Pennsylvanian of Kansas, (abstr.)
Author: Clendening, J.A.; and Nygreen, P.W.
Publication: American Journal of Botany, vol. 55, no. 6, pt. 2, pp. 723-724
Year: 1968
Title: Morphological variation of Potonieisporites in a Late Pennsylvanian florule
Author: Nygreen, P.W.; and Bourn, O.B.
Publication: Review of Palaeobotany and Palynology, vol. 3, no. 1/4, pp. 325-332
Year: 1967
Title: Nanoxanthiopollenites, a new monolete miospore from the Upper Pennsylvanian of Kansas
Author: Clendening, J.A.; and Nygreen, P.W.
Publication: Geoscience and Man, vol. 15, pp. 125-128
Year: 1976
Kansas Geological Survey
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Database updated June 2012.