Comparative ultrastructure of the megaspores of the Triassic lycopsid Pleuromeia rossica Neuburg

被引：29

作者：

Lugardon, B

Grauvogel-Stamm, L

Dobruskina, I

机构：

[1] Univ Strasbourg 1, EOST Geol, F-67084 Strasbourg, France

[2] CNRS UMR 5554, F-67084 Strasbourg, France

[3] Univ Toulouse 3, Lab Biol Vegetale, F-31000 Toulouse, France

[4] Hebrew Univ Jerusalem, Inst Earth Sci, IL-91904 Jerusalem, Israel

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DE LA TERRE ET DES PLANETES | 2000年 / 330卷 / 07期

关键词：

Triassic; Lycopsida; Pleuromeia; megaspores; ultrastructure; phylogeny;

D O I：

10.1016/S1251-8050(00)00145-2

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The ultrastructural study of the megaspores in Pleuromeia rossica clearly demonstrates that these spores have, besides the features common to the megaspores of all the fossil and recent lycopsids, the few structural characteristics regarded as distinctive of the isoetalean megaspores. These isoetalean characteristics of the megaspores of P. rossica, in addition to the ultrastructural similarities of its microspores with those of the living Isoetes (shown recently), reinforce the assumption of a close relationship between these lycopsids. (C) 2000 Academie des sciences / Editions scientifiques ct medicales Elsevier SAS.

引用

页码：501 / 508

页数：8

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COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DE LA TERRE ET DES PLANETES, 1999, 329 (06) :435-442

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