Columbia subject headings:
Geology, Stratigraphic--Miocene.
Geology, Stratigraphic--Pliocene.
Geology--California.
Harvard subject headings:
Geology, Stratigraphic--Miocene
Geology, Stratigraphic--Pliocene
Geology--California
Princeton subject headings:
Foraminifera, Fossil.
Paleontology--California.
Paleontology--Miocene.
Paleontology--Pliocene.