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;
Departamento de Geociencias Universidad de Vigo Vigo 36200 Spain;
Queensland Herbarium Mount Coot-tha Road Toowong QLD 4066 Australia;
Departamento de Geociencias Universidad de Vigo Vigo 36200 Spain;
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;
Department of Geology Northwest University Xi'an 710069 China;