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The Grand Staircase at Kanab Creek in 1879 : the Grand Canyon's third dimension : it's remarkable first measurement by C.D. Walcott

Hintze, Lehi F.
Bok Engelsk 2009

Smithsonian Institution secretary, Charles Doolittle Walcott

Ellis L. Yochelson
Bok Engelsk 2001

Charles Doolittle Walcott, Paleontologist : By Ellis, L.Yochelson

Yochelson, Ellis L.
Bok Engelsk 1998

The scientific ideas of G. K. Gilbert : an assessment on the occasion of the centennial of the United States geological survey (1879-1979)

edited by Ellis L. Yochelson
Bok Engelsk 1980

North American Paleontological Convention

Proceedings of the North American paleontological Con oceedings of the North American Paleontological Convention
Bok Engelsk 1979

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

by Melville R. Mudge and Ellis L. Yochels...
Bok Engelsk 1962

Permian Gastropoda of the southwestern United States. 3.. Bellerophontacea and Patellacea. With notes on Pennsylvania Bellero-phontacea

Yochelson, Ellis L.
Bok Engelsk 1960

Permian Gastropoda of the southwestern United States. 1..

Yochelson, Ellis L.
Bok Engelsk 1956

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