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2012 Dr. Jean Galtier, Botanique et Bioinformatique de l'Archiectures des Plantes (AMAP). For the paper: “The origins and early evolution of the megaphylous leaf.? International Journal of Plant Sciences 171"641-661
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2008 - Dr. Maria A. Gandolfo, Cornell University. For her paper: “Fossil Nelumbonaceae from the La Colonia Formation (Campanian-Maastrichtian, Upper Cretaceous), Chubut, Patagonia, Argentina.” Co-author on the paper is N. R. Cuneo.
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2005 - Dr. Ruth A. Stockey, University of Alberta. For her paper: “Diversity among taxodioid conifers Metasequoia foxii sp. nov. from the Paleocene of Central Alberta, Canada” with co-authors G.W. Rothwell and A.B. Falder.
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2002 Dr. Gar W. Rothwell. For his paper with co-author G. Mapes: “Barthelia furcata gen. et sp. nov., with a review of Paleozoic coniferophytes and a discussion of coniferophyte systematics”
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1999 Karen A. Renzaglia (Department of Plant Biology, Southern
Illinois University) "Developmental ultrastructure of the
male gamete of Selaginella" Co-authors on the paper are Douglas
L. Bernhard and David J. Garbary.
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1997 Brigitte Meyer-Berthaud - "A reinvestigation of
Stenolyelon from the Late Tournasian of Scotland".
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1996 Jack B. Fisher and Frank W. Ewers - "Vessel dimensions
in liana and tree species of Gnetum (Gnetales)".
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1995 Steven R. Manchester - "Fruits and seeds of the Middle
Eocene nut beds flora, Clarno Formation, Oregon".
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1993 Karl J. Niklas - "Plant Biomechanics".
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1992 Elisabeth A. Wheeler - "Paleocene dicotyledonous trees
from Big Bend National Park, Texas".
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1991 Paul Kenrick - "The structure of water conducting cells
in the enigmatic early land plants Stockmansella langii,
Huvenia kleui, and Sciadophyton".
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1990 Joanne M. Dannenhoffer - "Rellimia thomsonii from
the Givetian of New York: Secondary growth in three orders of branching".