Wang, Q., Song, Z.Q., Chen, Y.F., Shen, S. and Li, Z.Y. (2014) Leaves and fruits of Bauhinia (Leguminosae, Caesalpinioideae, Cercideae) from the Oligocene Ningming Formation of Guangxi, South China and their biogeographic implications. BMC Evolutionary Biology, 14, 1-16.