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
ISSN0022-3360
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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