Laboratory of Tree-Ring Research Natural History Collection

  • Peter W. Brewer (Creator)
  • David C Frank (Contributor)
  • C. P. Stylianidis (Contributor)
  • Diane A. Dickie (Contributor)



The Laboratory of Tree-Ring Research (LTRR) is a hub of inter-disciplinary research, teaching, and outreach excellence at the University of Arizona (UArizona). The LTRR is a preeminent center of dendrochronology – using the information stored in the annual rings of trees to understand and quantify interactions among our Earth’s climate, ecosystems, and societies. This resource includes natural history specimens from the LTRR collection.
Date made available2022
PublisherLaboratory of Tree-Ring Research, University of Arizona
Geographical coverageCoverage is focused on the western United States, but specimens from all continents (excluding Antarctica) are included in the collection.
Geospatial Polygon-90.0, 180.0, 90.0, -180.0

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