Pollen and spores from Lower Cretaceous in Guyang Basin of Inner Mongolia, China and their palaeoclimatic and paleoecological significance

Jin Peihong; Chen Jingwei; Wang Zixi; Xu Xiaohui; Yang Guolin; Du Baoxia; Sun Bainian

摘要

Abstract > Research on the climate and vegetation of the Cretaceous is fundamental to understanding the present environment. The present study focuses on the Lower Cretaceous Guyang Formation (Inner Mongolia), which yields unique macrofossils and diverse palynological assemblages that are used to understand the palaeoecology. In total, 56 genera are identified in the examined assemblage, which are dominated by spores and pollen of pteridophytes and gymnosperms. The gymnosperm pollen is dominated by Taxodiaceae, which belong to Coniferales, and a large proportion of pollen attributable to the Cycadophyta and Ginkgopsida. The pteridophyte spores are dominated by taxa attributable to the Lygodiaceae and Cyatheaceae. Quantitative analysis based on the geographical distribution of modern plant communities and the Sporomorph Ecogroup (SEG) model, the palynomorph associations are used to infer the presence of a closed coniferous forest dominated by Podozamitales, <fi>Picea</fi> and <fi>Podocarpus</fi> with understory vegetation comprising ferns prevailed. The fossil palyno flora indicates a warm and humid subtropical climate during Early Cretaceous of Inner Mongolia. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“main”> <标题类型=“main”>抽象</ title> > Cretace的气候和植被的研究是理解现在的环境的基础。本研究重点介绍，下白垩纪Guyang地层（内蒙古），产生了独特的宏观物和用于理解古生学的多样性椎间囊组合。总共，在检查的组合中鉴定了56个属，这些组合物由孢子和牙肌孢子的孢子和花粉构成。裸子植物花粉是由罗西比亚的占主导地位，属于针对性，以及归因于Cycadophyta和Ginkgopsida的大部分花粉。 Pteridophyte孢子占含莱氏菌和Cyatheae的分类群。基于现代植物社区的地理分布和孢子素生态群（SEG）模型的定量分析，帕尔同数缔合物用于推断由Podozamitales的封闭针叶林，<fi> Picea </ fi>和<fi>。 Podocarpus </ fi>与包括蕨类植物的林下植被占上风。化石Palyno Flora表示内蒙古早期白垩纪中的温暖和潮湿的亚热带气候。 </ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-30952/'>《The island arc》</a> <b style="margin: 0 2px;">|</b><span>2017年第5期</span><b style="margin: 0 2px;">|</b><span>共11页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Jin Peihong&option=202" target="_blank" rel="nofollow">Jin Peihong;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chen Jingwei&option=202" target="_blank" rel="nofollow">Chen Jingwei;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Zixi&option=202" target="_blank" rel="nofollow">Wang Zixi;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Xu Xiaohui&option=202" target="_blank" rel="nofollow">Xu Xiaohui;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yang Guolin&option=202" target="_blank" rel="nofollow">Yang Guolin;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Du Baoxia&option=202" target="_blank" rel="nofollow">Du Baoxia;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sun Bainian&option=202" target="_blank" rel="nofollow">Sun Bainian;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>School of Earth Sciences &</p> <p>Key Laboratory of Mineral Resources in Western China (Gansu Province)Lanzhou UniversityLanzhou 730000 China;</p> <p>School of Earth Sciences &</p> <p>Key Laboratory of Mineral Resources in Western China (Gansu Province)Lanzhou UniversityLanzhou 730000 China;</p> <p>School of Earth Sciences &</p> <p>Key Laboratory of Mineral Resources in Western China (Gansu Province)Lanzhou UniversityLanzhou 730000 China;</p> <p>School of Earth Sciences &</p> <p>Key Laboratory of Mineral Resources in Western China (Gansu Province)Lanzhou UniversityLanzhou 730000 China;</p> <p>School of Earth Sciences &</p> <p>Key Laboratory of Mineral Resources in Western China (Gansu Province)Lanzhou UniversityLanzhou 730000 China;</p> <p>School of Earth Sciences &</p> <p>Key Laboratory of Mineral Resources in Western China (Gansu Province)Lanzhou UniversityLanzhou 730000 China;</p> <p>School of Earth Sciences &</p> <p>Key Laboratory of Mineral Resources in Western China (Gansu Province)Lanzhou UniversityLanzhou 730000 China;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span>P313.7; </span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Guyang Formation&option=203" rel="nofollow">Guyang Formation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lower Cretaceous&option=203" rel="nofollow">Lower Cretaceous;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=paleoclimate&option=203" rel="nofollow">paleoclimate;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=paleoecology&option=203" rel="nofollow">paleoecology;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=pollen and spore&option=203" rel="nofollow">pollen and spore;</a> </p> <div class="translation"> 机译：Guyang Closeation;下白垩纪;古古古植物;古生态;花粉和孢子; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul id="referenceul"></ul> <ul id="citationul"></ul> <ul id="commonreferenceul"></ul> <ul id="commoncitationul"></ul> <ul id="tworeferenceul"></ul> <ul id="twocitationul"></ul> </div> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li 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