Columbia subject headings:
Harvard subject headings:
Mammals, Fossil.
Mammals--Classification
Omo River Valley (Ethiopia and Kenya)--Antiquities.
Paleoecology--Omo River Valley (Ethiopia and Kenya)
Paleontology--Ethiopia.
Princeton subject headings:
Mammals, Fossil.
Paleoecology--Ethiopia--Omo Valley.
Paleontology--Ethiopia--Omo Valley.