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https://archives.lib.duke.edu/catalog/uadukeforest_aspace_4cf5f1e6701660ac8c3cb17ed82cff5d Geology and Soils - Archives & Manuscripts at Duke University Libraries geology and soils duke university archives manuscripts libraries https://snr.unl.edu/data/geologysoils/fossils/nebrinvertWintersetBrachiopods.aspx Brachiopods from the Winterset Limestone | Invertebrates | Fossils | Geology and Soils | Data |... geology and soils from the brachiopods winterset limestone