Bulletins of American paleontology - Columbia University. College of Pharmacy. (Paleontological Research Institution [etc.], 1962)

Journal of the Washington Academy of Sciences - Washington Academy of Sciences (Washington, D.C.) (Washington Academy of Sciences], 1937)

Malacologia - Institute of Malacology. (Institute of Malacology], 1977)

Malacologia - Institute of Malacology. (Institute of Malacology], 1977)

Malacologia - Institute of Malacology. (Institute of Malacology], 1977)

Malacologia - Institute of Malacology. (Institute of Malacology], 1981)

Miocene - Maryland Geological Survey. (Johns Hopkins Press, 1904)

Palaeontographica Americana - Paleontological Research Institution (Ithaca, N.Y.) (Paleontological Research Institution, 1956)

Palaeontographica Americana - Paleontological Research Institution (Ithaca, N.Y.) (Paleontological Research Institution, 1956)

Palaeontographica Americana - Paleontological Research Institution (Ithaca, N.Y.) (Paleontological Research Institution, 1956)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1844)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1844)

Transactions of the Wagner Free Institute of Science of Philadelphia - Wagner Free Institute of Science. (Wagner Free Institute of Science of Philadelphia, 1887)

Transactions of the Wagner Free Institute of Science of Philadelphia - Wagner Free Institute of Science. (Wagner Free Institute of Science of Philadelphia, 1887)

Transactions of the Wagner Free Institute of Science of Philadelphia - Wagner Free Institute of Science. (Wagner Free Institute of Science of Philadelphia, 1887)