Systematics Section / ASPT
Manchester, Steven R. .
Fossil record of Symplocaceae and Styracaceae (Ericales).
The Ericalean families Symplocaceae and Styracaceae were diverse and broadly distributed in the Tertiary of the Northern Hemisphere. Fruits provide characters that are diagnostic for the recognition of both extinct and extant genera and species. In addition to Symplocos, which is confirmed by fruits from the Early and Middle Eocene of North America, from the Early Eocene to Pliocene of Europe, as well as the Neogene of Asia, the Symplocaceae are represented by extinct genera. Pallioporia and Sphenotheca from the mid to late Tertiary of Europe, well known from their anatomically preserved fruits, underscore the importance of Europe as a center of diversity of the Symplocaceae in the mid- to late Tertiary. The styracaceous genus Rehderodendron, now exclusively east Asian in distribution, has an excellent fossil record along with that of Styrax in Europe, ranging from the Early Eocene to the Pliocene. A newly recognized occurrence of Rehderodendron from the Eocene of Oregon is also presented. The European fossil fruit records attributed to Halesia need to be reevaluated in light of new data indicating that the extant American and Asian species are non-monophyletic.
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1 - Florida Museum of Natural History, Dickinson Hall, P.O. Box 117800, Gainesville, Florida, 32611, USA
Presentation Type: Oral Paper
Date: Monday, August 15th, 2005
Time: 4:45 PM