Nut of Juglans bergomensis (Balsamo Crivelli) Massalongo in the Miocene of North America

• Published in: Acta Palaeobotanica
• Main Authors: MACKENZIE SMITH, STEVEN R. MANCHESTER
• Format: Article in Journal/Newspaper
• Language: English
• Published: W. Szafer Institute of Botany, Polish Academy of Sciences 2018
• Subjects: juglans bergomensis; butternut; juglandaceae; miocene; washington; Paleontology; QE701-760; Botany; QK1-989; Canada; Banks Island
• Online Access: https://doi.org/10.2478/acpa-2018-0011; https://doaj.org/article/1a1fffc0933b42b5b5208e3500c82b2b

A new occurrence of fossil butternut is recognized based on a permineralized highly scabrate walnut from the middle Miocene of western Washington, USA. The specimen fits the circumscription of Juglans bergomensis (Balsalmo Crivelli) Massalongo, a species that was widespread in Europe and Asia during the Neogene. The occurrence near Brady, Washington, supplements the previously recognized occurrence from Banks Island, Canada, indicating a distribution in mid-latitude western North America as well as Europe and Asia during the Miocene.