Marattia aganzhenensis sp nov from the Lower Jurassic Daxigou Formation of Lanzhou, Gansu, China

被引：6

作者：

Yang, Shu

Wang, Jun ^{[1
]}

Pfefferkorn, Hermann W.

机构：

[1] Lanzhou Univ, Coll Resource & Environm Sci, Lanzhou 730000, Peoples R China

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

[3] Univ Penn, Dept Earth & Environm Sci, Philadelphia, PA 19104 USA

来源：

INTERNATIONAL JOURNAL OF PLANT SCIENCES | 2008年 / 169卷 / 03期

关键词：

China; Gansu; Lower Jurassic; Marattia aganzhenensis sp nov; Marattiales;

D O I：

10.1086/526458

中图分类号：

Q94 [植物学];

学科分类号：

071001 [植物学];

摘要：

Marattia aganzhenensis sp. nov. from the Lower Jurassic Daxigou Formation of Lanzhou, Gansu, China, is the second species of Marattia known in fertile structure from China, in addition to Marattia asiatica. The new species demonstrates the variability of the genus through its distinct character states. This new species is distinguished by the absence of venuli recurrentes, the shorter synangia, exclusively monolete spores without surface ornamentation, and the low number of spores produced per sporangium.

引用

页码：473 / 482

页数：10