New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas

被引：94

作者：

Marret, F ^{[1
]}

Leroy, S

Chalié, F

Gasse, F

机构：

[1] Univ Wales Bangor, Sch Ocean Sci, Menai Bridge LL59 5AB, Gwynedd, Wales

[2] Brunel Univ, Dept Geog & Earth Sci, Uxbridge UB8 3PH, Middx, England

[3] CNRS, CEREGE, UMR 6635, F-13545 Aix En Provence 04, France

来源：

REVIEW OF PALAEOBOTANY AND PALYNOLOGY | 2004年 / 129卷 / 1-2期

关键词：

dinoflagellate cysts; taxonomy; Caspian Sea; Aral Sea; late Holocene;

D O I：

10.1016/j.revpalbo.2003.10.002

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Recent to sub-recent sediments from the Caspian Sea, the Kara-Bogaz-Gol Bay, the Enseli lake and the Aral Sea contain the new organic-walled dinoflagellate cysts Caspidinium, Caspidinium rugosum and Impagidinium caspienense. C. rugosum has S-type paratabulation, dextral torsion and low relief intratabular ornamentation. L caspienense has low intratabular suturo-cavate relief, parasutural septa irregular in height and a high septum at the junction of paraplate I and the sulcus. The accompanying species consist of Spiniferites cruciformis, Lingulodinium machaerophorum, Pyxidinopsis psilata, cysts of Pentapharsodinium dalei and Brigantedinium spp. S. cruciformis varies from specimens with a cruciform body with a well-developed postero-lateral membranous flange to specimens with a pear-shaped body, reduced processes and no flange. Sea-surface data from these Central Asian seas suggests that the two new taxa C rugosum and I caspienense are probably related to low salinity conditions (12-13). (C) 2004 Elsevier B.V All rights reserved.

引用

页码：1 / 20

页数：20

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