捷克共和国布拉格盆地Přídolí（上志留纪）早期陆地植物Tichavekia grandis Pšenička等人生殖器官和原位孢子的初步结果

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Palaeoworld Pub Date : 2024-04-01 DOI:10.1016/j.palwor.2023.01.014

Jiří Bek , Monika Uhlířová , Josef Pšenička , Jakub Sakala

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引用次数: 0

摘要

本研究详细描述了从布拉格盆地上志留世普日多利科索夫（Kosov）早期陆生植物 Tichavekia grandis 分离出的生殖器官和原位孢子。亚球形至肾形孢子囊宽 2.2-3.0 毫米，长 1.6-2.0 毫米，由一层厚厚的煤质形成，显示出边缘的边缘。直径为17-32微米的三粒碎屑状原位孢子的近端表面具有微细粒、微刺状到皱纹状的雕刻，与任何分散的和原位的志留纪孢子类群都无法相比，因此，它可能代表了一个新的孢子类群。研究人员将其与其他炊事孢子类群进行了比较。

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Preliminary results on reproductive organs and in situ spores of an early land plant Tichavekia grandis Pšenička et al. from Přídolí (upper Silurian) of the Prague Basin, Czech Republic

Reproductive organs and in situ spores isolated from early land plant Tichavekia grandis from the Kosov, Přídolí, upper Silurian of the Prague Basin are described in detail. Subspherical to reniform sporangia are 2.2–3.0 mm wide and 1.6–2.0 mm long, and are formed by a thick layer of coaly matter showing a marginal rim. Trilete crassitate in situ spores 17–32 µm in diameter have microgranulate, microspinate to rugulate sculpture of proximal surface and are not comparable with any dispersed and in situ Silurian spore taxa and, therefore, it may represent a new spore taxon. Palynological comparison with other cooksonioid taxa is made.

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来源期刊

Palaeoworld PALEONTOLOGY-

CiteScore

4.00

自引率

5.90%

发文量

期刊介绍： Palaeoworld is a peer-reviewed quarterly journal dedicated to the study of past life and its environment. We encourage submission of original manuscripts on all aspects of palaeontology and stratigraphy, comparisons of regional and global data in time and space, and results generated by interdisciplinary investigations in related fields. Some issues will be devoted entirely to a special theme whereas others will be composed of contributed articles. Palaeoworld is dedicated to serving a broad spectrum of geoscientists and palaeobiologists as well as serving as a resource for students in fields as diverse as palaeobiology, evolutionary biology, taxonomy and phylogeny, geobiology, historical geology, and palaeoenvironment. Palaeoworld publishes original articles in the following areas: •Phylogeny and taxonomic studies of all fossil groups •Biostratigraphy, chemostratigraphy, chronostratigraphy •Palaeoecology, palaeoenvironment and global changes throughout Earth history •Tempo and mode of biological evolution •Biological events in Earth history (e.g., extinctions, radiations) •Ecosystem evolution •Geobiology and molecular palaeobiology •Palaeontological and stratigraphic methods •Interdisciplinary studies focusing on fossils and strata