Amaia Arranz-Otaegui describes the discovery of bread that far pre-dates agriculture.
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Communicated by W. Jason Morgan, Princeton University, Princeton, NJ, January 20, 2004 (received for review October 3, 2003)
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History:
- Published in print March 16, 2004.
- Published first March 2, 2004.
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Copyright © 2004, The National Academy of Sciences
Author Information
- Gerta Keller * , †,
- Thierry Adatte ‡,
- Wolfgang Stinnesbeck §,
- Mario Rebolledo-Vieyra ¶,
- Jaime Urrutia Fucugauchi ∥,
- Utz Kramar **, and
- Doris Stüben **
- *Department of Geosciences, Princeton University, Princeton, NJ 08540; ‡Institute of Geology, University of Neuchatel, 2007 Neuchatel, Switzerland; §Geological Institute and **Institute for Mineralogy and Geochemistry, University of Karlsruhe, D-76128 Karlsruhe, Germany; ¶Laboratoire des Sciences du Climat et l'Environnement, Unité Mixte de Recherche Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique, Bât 12, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France; and ∥Instituto de Geofisica, Universidad Nacional Autonóma de México, Ciudad Universitaria, Mexico City, CP 04510, Mexico
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Communicated by W. Jason Morgan, Princeton University, Princeton, NJ, January 20, 2004 (received for review October 3, 2003)
Footnotes
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↵ † To whom correspondence should be addressed. E-mail: gkeller{at}princeton.edu.
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Abbreviations: K-T, Cretaceous-Tertiary; ky, thousand years; XRD, x-ray diffraction; Yax-1, Yaxcopoil-1.
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↵ †† Stinnesbeck, W., Keller, G., Adatte, T. & Stueben, D. (2003) Geophys. Res. Abstr. 5, 10868.
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↵ ‡‡ Smit, J., Dressler, B. O., Buffler, R., Moran, D., Sharpton, V. L., Stoeffler, D., Urrutia, J. & Morgan, J. (2003) Geophys. Res. Abstr. 5, 06498.
- Copyright © 2004, The National Academy of Sciences
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