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Erik L. Gulbranson
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Journal Article

Nitrogen-fixing symbiosis inferred from stable isotope analysis of fossil tree rings from the Oligocene of Ethiopia

Erik L. Gulbranson, Bonnie F. Jacobs, William C. Hockaday, Michael C. Wiemann, Lauren A. Michel, Kaylee Richards, John W. Kappelman
Journal: Geology
Published: 19 May 2017
Geology (2017) 45 (8): 687–690.
DOI: https://doi.org/10.1130/G39213.1
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Leaf habit of Late Permian Glossopteris trees from high-palaeolatitude forests

Erik L. Gulbranson, Patricia E. Ryberg, Anne-Laure Decombeix, Edith L. Taylor, Thomas N. Taylor, John L. Isbell
Published: 28 April 2014
Journal of the Geological Society (2014) 171 (4): 493–507.
DOI: https://doi.org/10.1144/jgs2013-127
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PALEOBOTANICAL AND GEOCHEMICAL APPROACHES TO STUDYING FOSSIL TREE RINGS: QUANTITATIVE INTERPRETATIONS OF PALEOENVIRONMENT AND ECOPHYSIOLOGY

ERIK L. GULBRANSON, PATRICIA E. RYBERG
Journal: PALAIOS
Published: 01 March 2013
PALAIOS (2013) 28 (3): 137–140.
DOI: https://doi.org/10.2110/palo.2013.SO2
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Correlation of Aptian-Albian Carbon Isotope Excursions in Continental Strata of the Cretaceous Foreland Basin, Eastern Utah, U.S.A.

Greg A. Ludvigson, R.M. Joeckel, Luis A. González, Erik L. Gulbranson, E. Troy Rasbury, Gary J. Hunt, James I. Kirkland, Scott Madsen
Published: 01 November 2010
Journal of Sedimentary Research (2010) 80 (11): 955–974.
DOI: https://doi.org/10.2110/jsr.2010.086
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