Columbia subject headings:
Harvard subject headings:
Paleontology--California--La Brea Pits.
Paleontology--Pleistocene
Vertebrates, Fossil--California--La Brea Pits.
Princeton subject headings:
Paleontology--California--La Brea Pits.
Paleontology--Pleistocene.
Vertebrates, Fossil--California--La Brea Pits.