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