期刊
PLANT SYSTEMATICS AND EVOLUTION
卷 298, 期 3, 页码 661-669出版社
SPRINGER WIEN
DOI: 10.1007/s00606-011-0575-3
关键词
Altingioxylon; Altingiaceae; Wood; Eocene; Changchang Formation; Biogeography
资金
- National Natural Science Foundation of China (NSFC) [40972011, 31070200]
- National Basic Research Program of China (973 Program) [2012CB822003]
- NSFC [41111120083, 11-04-91175]
- Russian Foundation of Basic Research [41111120083, 11-04-91175]
- Sun Yat-sen University
- Guangdong Provincial Natural Science Foundation of China [10151027501000020]
- Ministry of Science and Education of Russian Federation [16.518.11.7071]
- Guangdong Key Laboratory of Plant Resources [plant01k01]
A new species, Altingioxylon hainanensis, is described from the Eocene Changchang Formation of the Changchang Basin on Hainan Island, South China. It is the first record of a fossil wood assigned to Altingiaceae found in China, and the most ancient evidence of wood for this family in eastern Asia. The new species is similar to A. rhodoleioides, known since the Miocene in India and Java Island, and to Altingia hisauchii from the Miocene to Pliocene of Japan. The close resemblance between these species and Liquidambar sp., known from the Middle Miocene of western North America, provides additional evidence for the migration of their ancestors from Asia to North America across the Bering land bridge during the Miocene. Distinctions in ray sizes between the eastern Asian specimens and their contemporaries from Europe to Kazakhstan is suggested as a result of the divergence between the large eastern Asian clade and the North American-west Asian clade within Altingiaceae during the Eocene-Oligocene. The presence of crystals in ray cells may be considered an ancestral condition that persists in the eastern Asian lineages up to the extant Altingia and Semiliquidambar, but which was lost in other Altingiaceae in the course of evolution.
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