| Institution: | 1. Chicago Botanic Garden, Glencoe, Illinois, 60022 USA;2. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing, 210008 China;3. Institute of Paleontology, Mongolian Academy of Sciences, Ulaanbaatar–15160, Mongolia;4. Department of Geological Sciences, Stanford University, California, 94305 USA;5. Oak Spring Garden Foundation, Oak Spring, Upperville, Virginia, 20184 USA |
