Fossil flora of the John Day Basin Oregon.

The correlation of geological faunas A contribution to Devonian paleontology.
Published: (1903)

Bulletin of the United States Geological Survey No. 151.
Published: (1897)

Report of the Director of the United States Geological Survey.
Published: (1912)

Department of the Interior. Monographs of the United States Geological Survey.
Published: (1903)

Bulletin 696 A catalogue of the Mesozoic and Cenozoic plants of North America.
Published: (1919)

Shorter contributions to general geology, 1931.
Published: (1932)

Some Pliocene and Miocene Foraminifera of the coastal plain of the United States.
Published: (1918)

[Geological Survey bulletin 422; Analysis of silicate and carbonate rocks].
Published: (1910)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Bibliography and index of North American geology, paleontology petrology, and mineralogy for the year 1902.

Paleontology of the Coalinga district, Fresno and Kings Counties, California.
Published: (1909)

Department of the Interior Bulletin of the United States Geological Survey.
Published: (1885)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 360. Pre-Cambrian geology of North America.
Published: (1909)

Paleontology and stratigraphy of the Castle Hayne and Trent marls in North Carolina.
Published: (1926)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Bibliography and index of North American geology, paleontology, petrology, and mineralogy for the year 1903.
Published: (1904)

Monographs of the United States Geological Survey.
Published: (1898)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Contributions to Devonian paleontology 1903.
Published: (1904)

Professional Paper 167. Lower Triassic ammonoids of North America.
Published: (1932)

Bulletin 702 Oil possibilities in and around Baxter basin, in the Rock Springs uplift, Sweetwater County, Wyoming.
Published: (1920)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 391. The Devonian fauna of the Ouray limestone.
Published: (1909)

Department of the Interior. Monographs of the United States Geological Survey.
Published: (1903)

Department of the Interior Monographs of the United States Geological Survey.
Published: (1890)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. The bryozoan fauna of the Rochester shale.

Mollusca and crustacea of the Miocene formations of New Jersey.
Published: (1889)

Department of the Interior Monographs of the United States Geological Survey.
Published: (1888)

[Geological Survey monographs, v. 51; Cambrian brachiopoda, pt. 1: Text].
Published: (1912)

[Geological Survey monographs, v. 51; Cambrian brachiopoda, pt. 2: Plates].
Published: (1912)

The Ceratopsia.
Published: (1907)

Denudation and erosion in the southern Appalachian region and the Monongahela Basin.
Published: (1911)

Correlation papers Devonian and Carboniferous.
Published: (1891)

Recurrent tropidoleptus zones of the upper Devonian in New York.
Published: (1913)

Professional Paper 118. Some American Jurassic ammonites of the genera Quenstedticeras, Cardioceras, and Amoeboceras family Cardioceratidae.
Published: (1920)

A catalogue and bibliography of North American Mesozoic invertebrata.
Published: (1892)

Tertiary and Quaternary geology of the lower Rio Grande region, Texas.
Published: (1932)

Bulletin 814. Geology and ore deposits of the Wood River region, Idaho, with a description of the Minnie Moore and near-by mines.
Published: (1930)

A Geologic reconnaissance in southeastern Seward Peninsula and the Norton Bay-Nulato region Alaska.
Published: (1911)

Characteristic marine Jurassic fossils from the western interior of the United States.
by: Imlay, Ralph W. (Ralph Willard), 1908-1989
Published: (1948)