Columbia subject headings:
Harvard subject headings:
Mollusks, Fossil--Atlantic Ocean--Geographical distribution.
Paleontology--Atlantic Ocean.
Paleontology--Neogene
Paleontology--Pleistocene
Princeton subject headings:
Mollusks, Fossil--Atlantic Ocean--Geographical distribution.
Paleontology--Atlantic Ocean.
Paleontology--Neogene.
Paleontology--Pleistocene.