ToL Scientific Contributors for Polypodiopsida

• Maarten Christenhusz The Natural History Museum, London, United Kingdom (Equisetum, Marattiales, Osmundaceae)
• Jordan Metzgar Duke University (Polypodiopsida)
• Kathleen M. Pryer Duke University, Durham, North Carolina, USA (Polypodiopsida)
• Carl Rothfels Duke University, Durham, North Carolina, USA (Lycopodiopsida, Polypodiopsida, Pteridaceae)
• Harald Schneider Natural History Museum London, UK (Polypodiopsida)
• Eric Schuettpelz Duke University, Durham, North Carolina, USA (Polypodiopsida)
• Alan R. Smith University of California, Berkeley, California, USA (Polypodiopsida)
• Michael Windham Utah Museum of Natural History, Salt Lake City, Utah, USA (Polypodiopsida)

ToL Media Contributors for Polypodiopsida

• Maarten Christenhusz The Natural History Museum, London, United Kingdom
• John Giezentanner
• Brian S. Leander The University of British Columbia, Vancouver, British Columbia, Canada
• David R. Maddison University of Arizona, Tucson, Arizona, USA
• Jordan Metzgar Duke University
• Kathleen M. Pryer Duke University, Durham, North Carolina, USA
• Carl Rothfels Duke University, Durham, North Carolina, USA
• Katja Schulz University of Arizona, Tucson, Arizona, USA

Other Polypodiopsida biologists and enthusiasts

• SURINDER PAL KHULLAR PANJAB UNIVERSITY , CHANDIGARH INDIA (Polypodiopsida)
• Add my name to the list