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A New Taxodiaceous Seed Cone from the Oligocene of Washington

1989; Wiley; Volume: 76; Issue: 1 Linguagem: Inglês

10.2307/2444782

1537-2197

Charles N. Miller, David R. Crabtree,

Paleontology and Stratigraphy of Fossils

American Journal of BotanyVolume 76, Issue 1 p. 133-142 Article A NEW TAXODIACEOUS SEED CONE FROM THE OLIGOCENE OF WASHINGTON Charles N. Miller, Charles N. Miller Department of Botany, University of Montana, Missoula, Montana, 59812Search for more papers by this authorDavid R. Crabtree, David R. Crabtree Department of Botany, University of Montana, Missoula, Montana, 59812Search for more papers by this author Charles N. Miller, Charles N. Miller Department of Botany, University of Montana, Missoula, Montana, 59812Search for more papers by this authorDavid R. Crabtree, David R. Crabtree Department of Botany, University of Montana, Missoula, Montana, 59812Search for more papers by this author First published: 01 January 1989 https://doi.org/10.1002/j.1537-2197.1989.tb11293.xCitations: 11AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Cunninghamiostrobus goedertii is described as a new species based on permineralized seed cones from the Early Oligocene of Washington. The fossils come from the Makah Formation and were found on the northern shore of the Olympic Peninsula. The cone consists of numerous bract-scale complexes arranged helically around a central axis. Each bract-scale complex has a large bract bearing a small flap of tissue adaxially that represents the ovuliferous scale. Up to three seeds were produced on each complex. The vascular trace to the bract-scale complex diverges from the vascular cylinder of the cone axis as a concentric strand. This divides in the outer cortex of the axis to form a large collateral bract tract abaxially and a minute scale trace adaxially. The latter continues outward to supply the ovuliferous scale. The bract trace divides, forming many strands outward which occur in a row with transfusion tissue between them. Many resin canals also occur in the bract. The new cone combines features found in modern cones of Athrolaxis, Cunninghamia, and Taiwania but is most similar to Cunninghamiostrobus yubariensis from the Late Cretaceous of Japan. Citing Literature Volume76, Issue1January 1989Pages 133-142 RelatedInformation