| original |
Late Miocene |
|
India(Kerala) |
Ramanujam,C.G.K. et al. A study of the pollen grains of Ctenolophonidites from the Warkalli Deposits of South India with a note on the geological history of Ctenolophon. |
1973 |
| details |
Tertiary |
|
India |
Saxena,R.K. Taxonomic study of the Polycolpate pollen grains from the Indian Tertiary sediments with special reference to nomenclature. |
1982 |
| details |
Miocene |
|
India |
Ham,R.W.J.M.Van Der et al. New observations on the pollen of Ctenolophon, Oliver (Ctenolophonaceae), with remarks on the evolutionary history of the genus. |
1989 |