Columbia subject headings:
Paleoclimatology--Africa.
Paleoecology--Africa.
Palynology--Africa.
Harvard subject headings:
Paleobotany--Africa.
Paleobotany--Cenozoic
Paleoecology--Africa.
Paleontology--Africa.
Paleontology--Cenozoic
Princeton subject headings:
Paleobotany--Africa--Periodicals.
Paleobotany--Cenozoic.
Paleoecology--Africa--Periodicals.
Paleontology--Africa--Periodicals.
Paleontology--Cenozoic--Periodicals.