东欧地台中侏罗世裸子植物新发现

IF 1.7 3区 地球科学 Q2 PALEONTOLOGY
Natalya Nosova , Andrey Fedyaevskiy , Anna Lyubarova
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引用次数: 0

摘要

根据甲藻孢囊和孢粉组合,Stoilensky露天矿(俄罗斯别尔哥罗德州)的含植物层可追溯到巴吞纪中期至卡勒夫纪早期;根据古植物学数据,Mikhailovsky露天矿(俄罗斯库尔斯克州)的含植物层可追溯到巴吞纪中晚期。在别尔哥罗德和库尔斯克地区的中侏罗世首次记录到了伪藻类的代表。根据其独特的形态和表皮特征,描述了产自 Stoilensky 露天矿的一个新物种 Pseudotorellia oskolica。该物种的叶片非常狭窄,其特征是叶片正面有气孔。对白俄罗斯普里皮亚季洼地中侏罗世的 Czekanowskia europea 的模式材料进行了重新研究。europea 的诊断,因为在最初的出版物中只对该物种进行了描述。首次记录了别尔哥罗德和库尔斯克地区的 Czekanowskia 叶片。europea 的表皮特征。在普里皮亚季洼地发现了与欧芹属植物伴生的 Pagiophyllum sp.嫩枝和 Podozamites sp.的大量叶片碎片。这些属是首次在白俄罗斯记录到。本文讨论了东欧地台中侏罗纪植物区系中的 Pseudotorellia、Czekanowskia 和 Podozamites 叶的发现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
New findings of gymnosperms in the Middle Jurassic of the East European platform

The plant-bearing layers in the Stoilensky open mine (Belgorod Region, Russia) are dated to the middle Bathonian–early Callovian based on the dinoflagellate cysts and spore-pollen assemblages, and in the Mikhailovsky open mine (Kursk Region, Russia) – to the middle–late Bathonian based on palynological data. Representatives of Pseudotorellia are recorded in the Middle Jurassic of the Belgorod and Kursk regions for the first time. A new species, Pseudotorellia oskolica, is described from the Stoilensky open mine based on the unique morphological and epidermal features. Leaves of this species are very narrow, they are characterized by the presence of stomata on the adaxial leaf surface. The type material of Czekanowskia europea from the Middle Jurassic of the Pripyat depression in Belarus was restudied. The diagnosis for C. europea is provided, since only a description of this species was given in the original publication. Czekanowskia leaves are recorded from the Belgorod and Kursk regions for the first time. They are determined as C. europea based on the similar epidermal features as in the type leaves. A shoot of Pagiophyllum sp. and numerous leaf fragments of Podozamites sp. were found in association with C. europea in the Pripyat depression. These genera are recorded in Belarus for the first time. Findings of Pseudotorellia, Czekanowskia and Podozamites leaves in the Middle Jurassic floras of the East European platform are discussed.

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来源期刊
CiteScore
3.50
自引率
21.10%
发文量
149
审稿时长
6 months
期刊介绍: The Review of Palaeobotany and Palynology is an international journal for articles in all fields of palaeobotany and palynology dealing with all groups, ranging from marine palynomorphs to higher land plants. Original contributions and comprehensive review papers should appeal to an international audience. Typical topics include but are not restricted to systematics, evolution, palaeobiology, palaeoecology, biostratigraphy, biochronology, palaeoclimatology, paleogeography, taphonomy, palaeoenvironmental reconstructions, vegetation history, and practical applications of palaeobotany and palynology, e.g. in coal and petroleum geology and archaeology. The journal especially encourages the publication of articles in which palaeobotany and palynology are applied for solving fundamental geological and biological problems as well as innovative and interdisciplinary approaches.
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