| Out of the icehouse into the greenhouse: a late Paleozoic analogue for modern global vegetational change RA Gastaldo, WA DiMichele, HW Pfefferkorn Gsa today, 1996 | 306 | 1996 |
| Response of Late Carboniferous and Early Permian plant communities to climate change WA DiMichele, HW Pfefferkorn, RA Gastaldo Annual Review of Earth and Planetary Sciences 29 (1), 461-487, 2001 | 269 | 2001 |
| The taphonomy of land plants in the Orinoco Delta: a model for the incorporation of plant parts in clastic sediments of Late Carboniferous age of Euramerica MH Scheihing, HW Pfefferkorn Review of Palaeobotany and Palynology 41 (3-4), 205-240, 1984 | 190 | 1984 |
| Changes in dominance patterns in Upper Carboniferous plant-fossil assemblages HW Pfefferkorn, MC Thomson Geology 10 (12), 641-644, 1982 | 152 | 1982 |
| Permian vegetational Pompeii from Inner Mongolia and its implications for landscape paleoecology and paleobiogeography of Cathaysia J Wang, HW Pfefferkorn, Y Zhang, Z Feng Proceedings of the National Academy of Sciences 109 (13), 4927-4932, 2012 | 144 | 2012 |
| Taphonomic and sedimentologic characterization of roof-shale floras RA Gastaldo, HW Pfefferkorn, WA DiMichele Memoirs-Geological Society of America, 341-352, 1995 | 121 | 1995 |
| Selected plant megafossils from the Carboniferous of the Appalachian region, eastern United States: geographic and stratigraphic distribution B Bascombe, AT Cross, CF Eble, WH Gliiespie, HW Pfefferkorn MEMOIR-CANADIAN SOCIETY OF PETROLEUM GEOLOGISTS 19, 259-335, 2002 | 116 | 2002 |
| A pre-glacial, warm-temperate floral belt in Gondwana (Late Visean, Early Carboniferous) R Iannuzzi, HW Pfefferkorn Palaios 17 (6), 571-590, 2002 | 110 | 2002 |
| Paleoecology of Late Paleozoic pteridosperms from tropical Euramerica1 WA DiMichele, TL Phillips, HW Pfefferkorn The Journal of the Torrey Botanical Society 133 (1), 83-118, 2006 | 108 | 2006 |
| The life habits and paleoecology of Middle Pennsylvanian medullosan pteridosperms based on an in situ assemblage from the Bernice Basin (Sullivan County, Pennsylvania, USA) C Wnuk, HW Pfefferkorn Review of Palaeobotany and Palynology 41 (3-4), 329-351, 1984 | 103 | 1984 |
| Persistence of Late Carboniferous tropical vegetation during glacially driven climatic and sea-level fluctuations WA DiMichele, HW Pfefferkorn, TL Phillips Palaeogeography, Palaeoclimatology, Palaeoecology 125 (1-4), 105-128, 1996 | 97 | 1996 |
| An Early Pennsylvanian flora with Megalopteris and Noeggerathiales from west-central Illinois RL Leary, HW Pfefferkorn Circular no. 500, 1977 | 95 | 1977 |
| Early Permian coal-forming floras preserved as compressions from the Wuda District (Inner Mongolia, China) HW Pfefferkorn, J Wang International Journal of Coal Geology 69 (1-2), 90-102, 2007 | 92 | 2007 |
| Distribution of commonly occurring plant megafossils in the proposed Pennsylvanian System stratotype WH Gillespie, HW Pfefferkorn Proposed Pennsylvanian System Stratotype, Virginia and West Virginia 1, 87-96, 1979 | 88 | 1979 |
| The Mississippian and Pennsylvanian (Carboniferous) Systems in the United States: West Virginia and Maryland T Arkle, DR Beissel, RE Larese, EB Nuhfer, DG Patchen, RA Smosna, ... US Government Printing Office, 1979 | 85 | 1979 |
| No major stratigraphic gap exists near the Middle–Upper Pennsylvanian (Desmoinesian–Missourian) boundary in North America HJ Falcon-Lang, PH Heckel, WA Dimichele, BM Blake Jr, CR Easterday, ... Palaios 26 (3), 125-139, 2011 | 83 | 2011 |
| A note on the term" Upland flora" HW Pfefferkorn Review of Palaeobotany and Palynology 30, 157-158, 1980 | 72 | 1980 |
| High diversity and stratigraphic age of the Mazon Creek flora HW Pfefferkorn Mazon Creek Fossils, 129-142, 1979 | 68 | 1979 |
| Quantitative charakterisierung ober-karboner abdruckfloren HW Pfefferkorn, H Mustafa, H Hass Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen, 253-269, 1975 | 68 | 1975 |
| A Pennsylvanian-age terrestrial storm deposit; using plant fossils to characterize the history and process of sediment accumulation C Wnuk, HW Pfefferkorn Journal of Sedimentary Research 57 (2), 212-221, 1987 | 66 | 1987 |
