Columbia subject headings:
Harvard subject headings:
Animals, Fossil--North Carolina.
Animals, Fossil--Virginia.
Chowan River Formation (N.C. and Va.)
Mollusks, Fossil--North Carolina.
Mollusks, Fossil--Virginia.
Paleontology--North Carolina.
Paleontology--Pleistocene
Paleontology--Pliocene
Paleontology--Virginia.
Princeton subject headings:
Mollusks, Fossil--North Carolina.
Mollusks, Fossil--Virginia.
Paleontology--North Carolina.
Paleontology--Pleistocene.
Paleontology--Pliocene.
Paleontology--Virginia.