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A bibliographic index of North American late Paleozoic Hyolitha, Amphineura, Scaphopoda, and Gastrop

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
Washington, U.S. Govt. Print. Off., 1967. 1967

Biostratigraphy of the Phosphoria, Park City, and Shedhorn Formations.

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
Washington, U.S. Govt. Print. Off., 1968. 1968

Devonian carrier shells (Euomphalidae) from North America and Germany,

Linsley, Robert M., 1930-
Washington, U.S. Govt. Print. Off., 1973. 1973

The Early Cambrian fossil Salterella conulata Clark in eastern North America,

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
Washington, U.S. Govt. Print. Off., 1970. 1970

Gastropoda, Cephalopoda, and Trilobita of the Amsden Formation (Mississippian and Pennsylvanian) of

Gordon, Mackenzie, 1913-
Washington : U.S. Govt. Print. Off., 1975. 1975

Late Paleozoic gastropoda from northern Alaska,

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
Washington, U.S. Govt. Print. Off., 1960. 1960

The Lower Ordovician gastropod Ceratopea,

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
Washington, U.S. Govt. Print. Off., 1957. 1957

Mattheva, a proposed new class of mollusks,

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
Washington, U.S. Govt. Print. Off., 1966. 1966

Middle Proterozoic (1.5 Ga) Horodyskia moniliformis Yochelson and Fedonkin, the oldest known tissue-

Fedonkin, M. A. (Mikhail Aleksandrovich)
Washington, D.C. : Smithsonian Institution Press, 2002. 2002

New Upper Cretaceous Amphineura (Mollusca)

Smith, Allyn G., 1893-1976.
Washington, U.S. Govt. Print. Off., 1968. 1968

North American Paleozoic land snails, with a summary of other Paleozoic nonmarine snails

Solem, Alan, 1931-
[Reston, Va.] : Dept. of the Interior, Geological Survey ; Washington : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979. 1979

On the nature of Polylopia,

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
Washington, U.S. Govt. Print. Off., 1968. 1968

Paleozoic gastropoda from the Moose River synclinorium, northern Maine

Boucot, A. J. (Arthur James), 1924-
Washington : U.S. Govt. Print. Off., 1966. 1966

Predation on sub-Holocene scaphopod mollusks from southern Louisiana

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
[Reston, Va.?] : U.S. Dept. of the Interior, Geological Survey ; Alexandria, VA : For sale by the Distribution Branch, U.S. Geological Survey, 1983. 1983

Recent gastropod boreholes and Ordovician cylindrical borings,

Carriker, Melbourne R. (Melbourne Romaine), 1915-2007.
Washington, U.S. Govt. Print. Off., 1968. 1968

Salterella from the Lower Cambrian of central Nevada,

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
Washington, U.S. Govt. Print. Off., 1970. 1970

Shorter contributions to paleontology and stratigraphy

[Washington, D.C.] : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1987. 1987

Stratigraphy and paleontology of the uppermost Pennsylvanian and lowermost Permian rocks in Kansas,

Mudge, Melville R., 1921-
Washington, U.S. Govt. Print. Off., 1962. 1962

Teiichispira, a new early Ordovician gastropod genus,

Yochelson, Ellis L. (Ellis Leon), 1928-2006.
Washington, U.S. Govt. Print. Off., 1968. 1968