| Country | China |
| Province | Hainan |
| Age | Early Miocene / Xiayang Fm |
| References | Sun, X.J., Li, M.X., Zhang, Y.Y., Lei, Z.Q., Kong, Z.C., Li, P., Ou, Q., Liu, Q.N., 1981. Spores and pollen. In: South Sea Branch of petroleum Corporation of the People’s Republic of China, et al., (Eds.), Tertiary Palaeontology of North Continental Shelf of the South China Sea. Guangdong Science and Technology Press, Guangzhou, pp. 1-58. (In Chinese.) |
| Sum of all taxa | 19.96 |
| Sum of zonal taxa | 14.14 |
| Sum of zonal woody angiosperms | 6.48 |
| Sum of % SCL + LEG | 0.00 |
| Sum of % D-HERB + M-HERB (ZONAL HERB) | 4.67 |