Re-evaluation of Cerebropollenites thiergartii Eberh.Schulz 1967 and related taxa: priority of Sciadopityspollenites and nomenclatural novelties

IF 0.9 4区生物学 Q4 PLANT SCIENCES

Grana Pub Date : 2023-01-02 DOI:10.1080/00173134.2022.2158688

Julia Gravendyck, C. Coiffard, J. Bachelier, W. Kürschner

{"title":"Re-evaluation of Cerebropollenites thiergartii Eberh.Schulz 1967 and related taxa: priority of Sciadopityspollenites and nomenclatural novelties","authors":"Julia Gravendyck, C. Coiffard, J. Bachelier, W. Kürschner","doi":"10.1080/00173134.2022.2158688","DOIUrl":null,"url":null,"abstract":"Abstract The important marker species for the base of the Jurassic, Cerebropollenites thiergartii, occurs contemporaneously with at least nine related taxa. However, their distinction is difficult and has been confused in the past. In addition, a long history of numerous recombinations with different genus names (e.g. Tsugaepollenites and Sciadopityspollenites), and inconsistent classifications or synonymisations, further complicate the taxonomic framework of Cerebropollenites thiergartii. A comprehensive study of these ten taxa, summarising their crucial distinctive characteristics and potential synonymy, is currently missing. This limits the stratigraphic value of Cerebropollenites thiergartii and associated taxa relevant to the Triassic–Jurassic transition. Here, we revisit relevant holotype material, related taxa and investigated new material for potential interspecific and intraspecific morphological variation. Based on an empirical analysis of name use and an extensive literature review, we identified previous sources of confusion, re-evaluated the distinctive characteristics and stratigraphic value of these taxa, and their relevance for the Triassic–Jurassic transition. Finally, we argue that the recombination as Sciadopityspollenites thiergartii is taxonomically and nomenclaturally imperative, not only due to priority, but also because it unifies previous disjunct use of Cerebropollenites for Mesozoic and Sciadopityspollenites for Cenozoic taxa, or Mesozoic species in many Russian studies. Thus, we propose a series of nomenclatural novelties: Sciadopityspollenites emend., Sciadopityspollenites thiergartii comb. nov. et emend., S. thiergartii ssp. nov. thiergartii, S. thiergartii ssp. multiverrucosus stat. nov., S. megaorbicularius sp. nov., S. carlylensis comb. nov. et emend., S. serratus emend., S. macroverrucosus emend., S. mesozoicus emend., Cryptopalynites gen. nov., Cryptopalynites pseudomassulae comb. nov. et emend.","PeriodicalId":50414,"journal":{"name":"Grana","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Grana","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1080/00173134.2022.2158688","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}

引用次数: 2

Abstract

Abstract The important marker species for the base of the Jurassic, Cerebropollenites thiergartii, occurs contemporaneously with at least nine related taxa. However, their distinction is difficult and has been confused in the past. In addition, a long history of numerous recombinations with different genus names (e.g. Tsugaepollenites and Sciadopityspollenites), and inconsistent classifications or synonymisations, further complicate the taxonomic framework of Cerebropollenites thiergartii. A comprehensive study of these ten taxa, summarising their crucial distinctive characteristics and potential synonymy, is currently missing. This limits the stratigraphic value of Cerebropollenites thiergartii and associated taxa relevant to the Triassic–Jurassic transition. Here, we revisit relevant holotype material, related taxa and investigated new material for potential interspecific and intraspecific morphological variation. Based on an empirical analysis of name use and an extensive literature review, we identified previous sources of confusion, re-evaluated the distinctive characteristics and stratigraphic value of these taxa, and their relevance for the Triassic–Jurassic transition. Finally, we argue that the recombination as Sciadopityspollenites thiergartii is taxonomically and nomenclaturally imperative, not only due to priority, but also because it unifies previous disjunct use of Cerebropollenites for Mesozoic and Sciadopityspollenites for Cenozoic taxa, or Mesozoic species in many Russian studies. Thus, we propose a series of nomenclatural novelties: Sciadopityspollenites emend., Sciadopityspollenites thiergartii comb. nov. et emend., S. thiergartii ssp. nov. thiergartii, S. thiergartii ssp. multiverrucosus stat. nov., S. megaorbicularius sp. nov., S. carlylensis comb. nov. et emend., S. serratus emend., S. macroverrucosus emend., S. mesozoicus emend., Cryptopalynites gen. nov., Cryptopalynites pseudomassulae comb. nov. et emend.

查看原文本刊更多论文

thiergartii Eberh脑粉的再评价。舒尔茨1967年及其相关分类群：花粉Sciadopityspollenites的优先权和命名新颖性

摘要侏罗纪基底的重要标志种，thiergartii小圆周虫，与至少9个相关类群同时存在。然而，它们的区别是困难的，并且在过去一直是混淆的。此外，长期以来，许多不同属名的重组（如Tsugaepollenites和Sciadopityspollenites），以及不一致的分类或同义词，使thiergartii脑孔虫的分类框架进一步复杂化。对这十个分类群的全面研究，总结其关键的独特特征和潜在的同义词，目前还缺乏。这限制了thiergartii小圆石和与三叠纪-侏罗纪过渡相关的相关分类群的地层价值。在这里，我们重新审视了相关的正模材料、相关的分类群，并研究了潜在种间和种内形态变异的新材料。基于对名称使用的实证分析和广泛的文献综述，我们确定了以前的混淆来源，重新评估了这些分类群的独特特征和地层价值，以及它们与三叠纪-侏罗纪过渡的相关性。最后，我们认为，在许多俄罗斯研究中，重组为ThiergartiSciadopityspollenites在分类学和命名上都是必要的，这不仅是因为优先权，还因为它统一了以前对中生代的Cerebropolenites和新生代分类群或中生代物种的Sciadopitys pollenites。因此，我们提出了一系列命名上的新颖之处：Sciadopityspollenites emend。，锡尔加蒂梳。nov.等人。，S.thiergartii ssp。11月，S.蒂尔加蒂。多疣菌（multiverrucosus stat.nov.），大眼轮藻（S.megaorbicularius sp.nov。nov.等人。，S.serratus校。，大型疣状芽孢杆菌修订版。，S.mesozoicus emend。，隐坡缕石gen.nov.，隐坡缕岩假麻梳。nov.等人。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Grana 生物-植物科学

CiteScore

2.10

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： Grana is an international journal of palynology and aerobiology. It is published under the auspices of the Scandinavian Palynological Collegium (CPS) in affiliation with the International Association for Aerobiology (IAA). Grana publishes original papers, mainly on ontogony (morphology, and ultrastructure of pollen grains and spores of Eucaryota and their importance for plant taxonomy, ecology, phytogeography, paleobotany, etc.) and aerobiology. All submitted manuscripts are subject to initial appraisal by the Editors, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. All peer review is single blind and submission is online via ScholarOne Manuscripts.