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The lower Ordovician gastropod Ceratopea / by Ellis L. Yochelson and Josiah Bridge.
by Yochelson, Ellis Leon, 1928-2006 | Bridge, Josiah. Material type:  Book Publisher: Washington : United States Government Printing Office, 1957Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.3 YOC] (1).
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Stratigraphy and paleontology of the uppermost Pennsylvanian and lowermost Permian rocks in Kansas / by Melville R. Mudge and Ellis L. Yochelson.
by Mudge, Melville R | Yochelson, Ellis Leon, 1928-2006. Material type: Book Publisher: Washington : United States Government Printing Office, 1962Availability: Items available for loan: Biblioteca Aranzadi [Call number: 551(781) MUD] (1).
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Late paleozoic gastropoda from northern Alaska / by Ellis L. Yochelson and J. Thomas Dutro.
by Yochelson, Ellis Leon, 1928-2006 | Dutro, Thomas J. Material type: Book Publisher: Washington : United States Government Printing Office, 1960Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.3(798) YOC] (1).
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Occurrence and significance of Marine Animal remains in American coal balls / by Sergius H. Mamay and Ellis L. Yochelson.
by Mamay, Sergius H, 1920-2008 | Yochelson, Ellis Leon, 1928-2006. Material type: Book Publisher: Washington : United States Government Printing Office, 1962Availability: Items available for loan: Biblioteca Aranzadi [Call number: 56 MAM] (1).
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On the nature of Polylopia / by Ellis L. Yochelson.
by Yochelson, Ellis Leon, 1928-2006. Material type: Book Publisher: Washington : United States Government Printing Office, 1968Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564 YOC] (1).
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Salterella from the lower Cambrian of Central Nevada / by Ellis L. Yochelson, J. W. Pierce and Michael E. Taylor.
by Yochelson, Ellis Leon, 1928-2006 | Pierce, J.W | Taylor, Michael E. Material type: Book Publisher: Washington : United States Government Printing Office, 1970Availability: Items available for loan: Biblioteca Aranzadi [Call number: 56(793)"6131" YOC] (1).
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The early Cambrian fossil Salterella Conulata clark in eastern north America / by Ellis L. Yochelson.
by Yochelson, Ellis Leon, 1928-2006. Material type: Book Publisher: Washington : United States Government Printing Office, 1970Availability: Items available for loan: Biblioteca Aranzadi [Call number: 551.732(73) YOC] (1).
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A bibliographic index of north American late paleozoic Hyolitha, Amaphineura Scaphopoda, and Gastropoda / edited by Ellis L. Yochelson and Burnett W. Saunders.
by Yochelson, Ellis Leon, 1928-2006 | Saunders, Burnett W. Material type: Book Publisher: Washington : United States Government Printing Office, 1967Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.3(01) YOC] (1).
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