Yale University
Shusheng Hu, Division of Paleobotany, Peabody Museum Of Natural History
Patrick Sweeney, Division of Botany, Peabody Museum of Natural History, Yale University Herbarium
Shusheng Hu, Division of Paleobotany, Peabody Museum Of Natural History
Patrick Sweeney, Division of Botany, Peabody Museum of Natural History, Yale University Herbarium