{"pk":41786,"title":"A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA","subtitle":null,"abstract":"Well-preserved silicified woods are common in the Pacific Northwest, USA. Localities near the town of Post, Oregon, provide insights into the late Eocene vegetation and climate ca. 36 million years ago and data for comparing both older and younger wood floras of the region. New investigations of the late Eocene Dietz Hill locality (UF 278) revealed woods belonging to the families Pinaceae (\nKeteleeria farjonii\n sp. nov.), Cupressaceae (\nTaxodioxylon\n sp.), Magnoliaceae (\nMagnolia hansnooteboomii\n sp. nov.), Lauraceae (\nLaurinoxylon\n sp. A and B), Platanaceae (\nPlatanoxylon haydenii \n(Felix) Süss and Müller-Stoll, 1977), Fabaceae (cf. \nStyphonolobium\n sp.), Fagaceae (\nFagus dodgei\n Wheeler and Manchester, 2021, \nQuercus\n sp., Red Oak type), Juglandaceae (\nCarya leroyii\n sp. nov.), Ulmaceae (\nUlmus woodii\n Wheeler and Manchester, 2007), Sapindaceae (\nAesculus constabularisii\n sp. nov., \nKlaassenoxylon wilkinsonii\n gen. et sp. nov.), and Araliaceae (\nPlerandreoxylon oskolskii\n sp. nov.). Some woods could be assigned to order, but not to family, Rosales (\nUrticaleoxylon stevensii\n gen. et sp. nov., and two unnamed woods with features of  Cannabaceae and Moraceae), Sapindales (cf. \nFagaroxylon\n sp.). There also is a \nHamamelidoxylon\n sp., which has features found in both the Theaceae and Hamamelidaceae. These woods, together with taxa identified from co-occurring silicified fruits and seeds represent a diverse assemblage of warm temperate to subtropical woody plants, some with East Asian affinities. Comparing the wood functional traits of the Dietz Hill assemblage to the older Clarno Nut Beds (mid-Eocene) woods and to the younger woods associated with Oligocene Bridge Creek flora attests to increased seasonality and cooling climate.","language":"en","license":{"name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0","short_name":"CC BY-NC-SA 4.0","text":"<p><!-- x-tinymce/html --></p>\n<p>Readers are free to:</p>\n<ul>\n<li><strong>Share</strong> — copy and redistribute the material in any medium or format</li>\n<li><strong>Adapt</strong> — remix, transform, and build upon the material<br><br>The licensor cannot revoke these freedoms as long as you follow the license terms.</li>\n</ul>\n<p>Under the following terms:</p>\n<ul>\n<li><strong>Attribution</strong> — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.</li>\n<li><strong>NonCommercial</strong> — You may not use the material for commercial purposes .</li>\n<li><strong>ShareAlike</strong> — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.<br><br>No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.</li>\n</ul>\n<p>Notices:</p>\n<p>You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.</p>\n<p>No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.</p>","url":"https://creativecommons.org/licenses/by-nc-sa/4.0"},"keywords":[{"word":"fossil wood, late Eocene, Sapindaceae, Urticalean Rosids, secondary xylem"}],"section":"Article","is_remote":true,"remote_url":"https://escholarship.org/uc/item/9g04504b","frozenauthors":[{"first_name":"Elisabeth","middle_name":"A.","last_name":"Wheeler","name_suffix":"","institution":"North Carolina State University, Box 8005, Raleigh, NC, 27695-8005, USA","department":"None"},{"first_name":"Steven","middle_name":"R.","last_name":"Manchester","name_suffix":"","institution":"Florida Museum of Natural History, University of Florida, 1659 Museum Road, Dickinson Hall, Gainesville, Florida, 32611-7800, USA","department":"None"},{"first_name":"Pieter","middle_name":"","last_name":"Baas","name_suffix":"","institution":"Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands","department":"None"}],"date_submitted":"2023-11-01T20:32:37Z","date_accepted":"2023-11-01T20:32:37Z","date_published":"2023-11-01T07:00:00Z","render_galley":null,"galleys":[{"label":"","type":"pdf","path":"https://journalpub.escholarship.org/ucmp_paleobios/article/41786/galley/31241/download/"}]}