Article Ulett, Mark A.; (2014)
Making the Case for Orthogenesis: The Popularization of Definitely Directed Evolution (1890--1926) (/isis/citation/CBB001420095/)

Article Bowler, Peter J.; (1979)
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Chapter Gliboff, Sander; (2011)
The Golden Age of Lamarckism, 1866--1926 (/isis/citation/CBB001500084/)

Thesis Ulett, Mark Andrew; (2014)
Definitely Directed Evolution (1890--1926): The Importance of Variation in Major Evolutionary Works by Theodor Eimer, Edward Drinker Cope, and Leo Berg (/isis/citation/CBB001567630/)

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Gateway, Instrument, Environment (/isis/citation/CBB001420908/)

Article Irina Podgorny; (2017)
Manifest ambiguity: Intermediate forms, variation, and mammal paleontology in Argentina, 1830–1880 (/isis/citation/CBB366174772/)

Article Karl, Hans-Volker; Tichy, Gottfried; (2004)
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Article Maienschein, Jane; (1994)
“It's a long way from Amphioxus”: Anton Dohrn and late 19th-century debates about vertebrate origins (/isis/citation/CBB000045777/)

Article McMillan, R. Bruce; (2010)
The Discovery of Fossil Vertebrates on Missouri's Western Frontier (/isis/citation/CBB001031246/)

Article Alexander, R. McN.; (1986)
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Article Lawrence, Natalie; (2014)
Plumed Wonders and Ornithological Passions (/isis/citation/CBB001421082/)

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Vertebrate Paleontology in Romania (/isis/citation/CBB000742048/)

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C. W. Beehler's Collection of Vertebrate Fossils: A Lost Legacy (/isis/citation/CBB008066555/)

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Article Pereira Martins, Lilian Al-Chueyr; (2013)
Lamarck e a progressão da escala animal (/isis/citation/CBB001214028/)

Article Stein, Barbara R.; (1997)
Annie M. Alexander: Extraordinary patron (/isis/citation/CBB000071813/)

Article Griesemer, James R.; Gerson, Elihu M.; (1993)
Collaboration in the Museum of Vertebrate Zoology (/isis/citation/CBB000034783/)

Article Garanin, Valerian I.; (2011)
Pallas' Contribution to the Study of Vertebrate Fauna of the Volga-Kama Region (/isis/citation/CBB001220387/)

Article Balan, Bernard; (1996)
L'oeil de la Coquille Saint Jacques: Bergson et les faits scientifiques (/isis/citation/CBB000074732/)

Article Hopwood, Nick; (2007)
A History of Normal Plates, Tables and Stages in Vertebrate Embryology (/isis/citation/CBB000800005/)