The earliest cormose rhizomorph of putative lycopsid affinity from the Middle Devonian of West Junggar, Xinjiang, China

被引：7

作者：

Xu, Hong-He ^{[1
]}

Wang, Yi ^{[1
]}

机构：

[1] Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China

来源：

REVIEW OF PALAEOBOTANY AND PALYNOLOGY | 2016年 / 226卷

基金：

中国国家自然科学基金;

关键词：

Rhizomorph; Isoetales; Lycopsid; Devonian; Xinjiang; NORTH XINJIANG; PALEOGEOGRAPHIC SIGNIFICANCE; SP-NOV; GEN-NOV; EVOLUTION; YUNNAN; BANKS; CLADOXYLOPSIDA; ARCHITECTURE; SPECIMENS;

D O I：

10.1016/j.revpalbo.2015.12.005

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Impression fossils of a cormose rhizomorph are described from the Givetian (late Middle Devonian) Hujiersite Formation, Hoxtolgay, West Junggar, Xinjiang, Northwest China. The rhizomorph is bulbous, with densely arranged, oval rootlet bases enclosing orbicular vascular bundle scars, exhibiting considerable resemblance to that of the Late Devonian-Carboniferous rhizomorphic lycopsid of Isoetales sensu stricto. The present specimens may represent the earliest cormose lycopsid rhizomorph. Their implications for the origin and early evolution of rhizomorphic lycopsids are discussed. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：54 / 57

页数：4

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