Columbia subject headings:
Paleontology--Patagonia (Argentina and Chile)
Vertebrates, Fossil--Patagonia (Argentina and Chile)
Harvard subject headings:
Paleontology--Patagonia (Argentina and Chile)
Vertebrates, Fossil
Vertebrates, Fossil--Patagonia (Argentina and Chile)
Princeton subject headings:
Paleontology--Patagonia (Argentina and Chile).
Vertebrates, Fossil.