A new species of Keteleeria (Pinaceae) in the Shanwang Miocene flora of China and its phytogeographic connection with North America
Authors: Wang, Yu-Fei1; Xiang, Qiao-Ping1; Ferguson, David K.2; Zastawniak, Ewa3; Yang, Jian1; Li, Cheng-Sen1
Source: Taxon, Volume 55, Number 1, February 2006 , pp. 165-171(7)
Publisher: International Association for Plant Taxonomy
- Free Content
- New Content
- Subscribed Content
- Free Trial Content
Abstract:
The presence of Keteleeria in the Miocene of eastern China is confirmed by the discovery of a cone, winged seeds, and leafy shoots. These are described and compared with other fossil and recent representatives. The best match was with K. rujadana, a K. fortunei-like fossil from the Oligocene of Oregon, U.S.A. The presence of similar, if not identical taxa, on both sides of the Pacific indicates that in the Mid-Tertiary exchange between East Asia and North America via the Beringian land-bridge was still possible. With global cooling in the Tertiary, this thermophilic conifer became scarce. Its present restricted distribution dates from the Quaternary.Keywords: CHINA; COMPARATIVE MORPHOLOGY; FOSSILS; KETELEERIA; MIOCENE; PHYTOGEOGRAPHY
Document Type: Research article
Affiliations: 1: State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, 20 Nan Xin Cun, Xiangshan, Beijing 100093, P. R. China 2: Department of Paleontology, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria 3: W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, PL-31-512 Kraków, Poland
- Free Content
- New Content
- Subscribed Content
- Free Trial Content
Click here for Page Help