KMS Nanjing Institute of Geology and Palaeonotology,CAS
Szecladia new genus, a late Permian conifer with multiveined leaves from South China | |
Yao, ZQ (姚兆奇); Liu, LJ (刘陆军); Rothwell, GW; Mapes, G | |
2000-05-01 | |
发表期刊 | JOURNAL OF PALEONTOLOGY |
ISSN | 0022-3360 |
卷号 | 74期号:3页码:524-531 |
摘要 | A conifer from the uppermost Permian with small, helically arranged leaves is described from the Guangxi Autonomous Region and Guizhou Province of South China as Szecladia multinervia, new genus and species. The material includes both impression specimens and the first anatomically preserved Paleozoic conifer fossils from China. Shoots are irregularly branched, with small, helically arranged, multiveined leaves. Stems display an endarch eustele with abundant, dense wood. Leaf traces diverge from the stele as a single bundle that divides several times in the cortex and at the base of the leaves, forming about seven or eight parallel veins in each leaf. Szecladia is the earliest known conifer with multiveined leaves and it represents a distinctive coniferous element of the uppermost Permian Cathaysian flora in South China. Szecladia further demonstrates that conifers with wood and leaf venation suggestive of the Podocarpaceae may have evolved by the end of the Paleozoic. |
语种 | 英语 |
关键词[WOS] | Paleobotany ; Palynology ; Gondwana |
WOS研究方向 | Paleontology |
WOS类目 | Paleontology |
WOS记录号 | WOS:000086984800015 |
出版者 | PALEONTOLOGICAL SOC INC |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/795 |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Yao, ZQ (姚兆奇) |
作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 2.Ohio Univ, Dept Environm & Plant Biol, Athens, OH 45701 USA |
推荐引用方式 GB/T 7714 | Yao, ZQ ,Liu, LJ ,Rothwell, GW,et al. Szecladia new genus, a late Permian conifer with multiveined leaves from South China[J]. JOURNAL OF PALEONTOLOGY,2000,74(3):524-531. |
APA | Yao, ZQ ,Liu, LJ ,Rothwell, GW,&Mapes, G.(2000).Szecladia new genus, a late Permian conifer with multiveined leaves from South China.JOURNAL OF PALEONTOLOGY,74(3),524-531. |
MLA | Yao, ZQ ,et al."Szecladia new genus, a late Permian conifer with multiveined leaves from South China".JOURNAL OF PALEONTOLOGY 74.3(2000):524-531. |
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